Used Infastaub Filter System Extraction Unit Filter for sale (59,071)

Year of construction: 2007, condition: as good as new (ex-display), machine/vehicle number: 31495, SOXHLET EXTRACTION UNIT -SEMI-AUTOMATIC RAYPA SX-6 System for extracting fats or solvents soluble in a solvent using methods Soxhlet and Randall. Compatible with a wide range of samples. Extraction system with solvents, according to Randall method for fat and soluble materials determination, in food, feeds, soils, detergents, polymers, paper pulp, fibres, rubbers, textiles, petrochemical products, pharmaceutical products, etc. Furniture in stainless steel, epoxy resin painted. Heating by an electric plate with an armoured heater to assure homogeneous distribution of heat. Control of temperature by a microprocessor with P.I.D. action and probe Pt100 class A. Over-temperature safety control by independent thermocouple. Vitón® seal set. In accordance with standardized international methods: AOAC, ISO, AACC. Advantages Independent programming of “boiling” extraction time and “rinsing” extraction time. Specifications Working range of temperatures: room temperature +5 ºC to 220 ºC. Solvent volume: up to 50 ml. Sample max. volume: 25 ml. Solvent recovery: 60-70%. Reproducibility: ±1%. Extraction cartridge Ø ext 26 × 60 mm. “boiling” extraction time: 0-99 h. Rsdpfjfiulfsx Abhew “rinsing” extraction time: 0-99 h. Extraction speed: 30-60 min. Electric protection IP65. NOTE: Components supplied with our equipment: 18 extraction vessels + magnetic adapter. 3 racks for extraction cartridges. 3 racks for extraction vessels. Aligning rack. Box containing 25 thimbles. Documents: Instruction manual for use and maintenance in Romanian and English. Year of manufacture 2007, never used • For the Romanian companies there is the possibility of selling in instalments. Price Euro 2.350+ VAT Ex Works Loaded of FCA: Oradea/Romania Irrtum, Anderungen und Zwischenverkauf vorbehalten / Subject to errors, changes and prior sale / Ne rezervăm dreptul la greșeli, modificări și vânzare We speak English. /Wir sprechen Deutsch./ Beszélünk magyarul. /Nous parlons français/Vorbim romana

Condition: used, Year of construction: 2010, power: 15 kW (20.39 HP), volume flow: 8,000 m³/h, actuation type: electric, We are offering this used Hurrican HF 3-355 Direkt stationary extraction unit, year of manufacture 2010. Machine type: HF 3-355 Direkt Airflow: 8000 m3/h Max. total pressure: 3550 Pa Rodpfx Abjzb Immjhsw Motor power: 15 kW Motor type: 160 M2/B3-85 Operating speed: 2950 rpm Housing position: R0 0 Suction side design: 355 FEF Pressure side design: 350 B Year of manufacture: 04/2010 If you have any questions or need more information, please send us a message or call us.

Condition: as good as new (ex-display), Year of construction: 2025, Special price for trade fair machine *available upon request New: With the frequency converter option, up to a maximum of 45% can be eligible for government subsidies. Combination of: mütek briquetting press MPP 60 + dust extraction unit MMJET 350 *Approved for indoor installation *Both individual machines are fully manufactured and in stock; they only need to be connected. Redpsd Su Hxsfx Abhjw 1. Technical data of the briquetting press: Our best-selling briquetting press, a classic. + Proven, simple technology for extremely low failure rates + 25 years of experience, continuous development, and know-how + Several thousand machines in use with satisfied customers + Excellent price-performance ratio Commodity code: 84793010 Briquet diameter: 50 mm Front socket: 50 mm Briquet stroke max.: 40 mm Briquet stroke opt.: 40 mm Throughput (material-dependent): up to 60 kg/h* *depending on the bulk density *based on a bulk density of 200 kg per cubic meter. Motor power: 5.5 kW, 400 Volt / 50 Hz / 3-phase, Overall dimensions of the system: 2.2 x 1.1 x 2.8 m (L x W x H) Height - 2.8 m (special container) Delivery is also possible in 2 parts Weight: approx. 1200 kg, Oil volume: 110 liters Silo diameter: 1000 mm Pump: 27 liters Hydraulic pre-compactor Option: cooling of the press jaws: no Option: cooling of the hydraulic oil: yes Option: level monitoring: yes CE compliant 2. Technical data of the clean air dust extraction unit MMJET 350: Dust extraction connection diameter: 350 mm Motor: 11 kW Dust extraction nozzle on the left (when standing in front of the dust bin) Residual dust content:

Year of construction: 2022, condition: new, Highlights of our two extraction systems Eco 3000 and Eco 5000 +Solid sheet metal construction ensures ideal flow conditions +resistant wind impeller +constant extraction performance even under constant stress + Connection of up to a maximum of 3/4 machines possible using the supplied distributors Rodjidma Nspfx Abhew +high suction power due to large filter surface (filter dimensions: ø500x1100mm) +Integrated driving device for easy manoeuvring Scope of delivery: Running gear, filter and chip bag, distributor (connection for 3/4xø100mm suction pipes), incl ---- Device available in two designs: *in the following marked with position 1) and 2) 1) Extraction system Eco 3000 - 1.5 kW * with a chip bag and an industrial polyester filter Motor power S1 in W 1500 Installation dimensions in mm 985x560x2250 Extraction capacity in m³/h: 3,000 Suction outlets 3x (ø100mm) Negative pressure in Pa: 2200 2) Extraction system Eco 5000 - 2.2 kW * with two chip bags and two industrial polyester filters Motor power S1 in W 2200 Installation dimensions in mm 1540x560x2270 Extraction capacity in m³/h: 5,000 Suction outlets 4x (ø100mm) Negative pressure in Pa: 2600 --- Information applies to both devices: Sound pressure level in dB(A) < 85 dB Voltage: 400V / 50Hz *Option: also available in 230 V Chip bag diameter in mm: 500 Chip bag length in mm: 850 Delivered in a box for self-assembly in a few steps The filters must be cleaned manually at regular intervals. Surcharge for suction with automatic cleaning + €4,700 net

Condition: new, Year of construction: 2025, functionality: fully functional, power: 11 kW (14.96 HP), input voltage: 400 V, type of input current: three-phase, volume flow: 9,000 m³/h, suction capacity: 9,000 m³/h, intake manifold diameter: 300 mm, filter area: 165 m², noise level: 70 dB, total height: 2,500 mm, total length: 1,980 mm, total width: 990 mm, overall weight: 450 kg, space requirement height: 2,500 mm, space requirement length: 2,000 mm, space requirement width: 1,000 mm, warranty duration: 12 months, Equipment: documentation/manual, 1. Product Description The Airtech extraction unit is a horizontally installable, integrated dust separation system (cartridge filter unit) equipped with multiple filter cartridges. It is designed for applications with small to medium volume flows and offers high particle separation efficiency. Main Features: - Multiple filter cartridges arranged horizontally provide a compact and maintenance-friendly design. Redpfx Ajxx Ia Hsbhow - Particularly suitable for industrial applications where constant and reliable dust extraction is required. Your Benefits - High filtration efficiency & air quality: The multi-stage filtration effectively retains fine dust particles, contributing to cleaner air and extending the service life of your production equipment. - Compact design: The horizontal layout saves space and simplifies integration into existing systems. - Low maintenance: Easy access to filter cartridges allows for efficient inspection, cleaning, or replacement. Powerful: The 11 kW blower ensures strong suction power and stable extraction performance even in challenging applications. Delivery ex works / ex stock Installation and commissioning (optional): available on request by our trained technical staff. Spare parts (filter cartridges) as well as maintenance contracts can be offered separately to maximize system uptime.

Condition: good (used), exhaust filter system, exhaust filter system, exhaust filter, hot filter, industrial exhaust filter -Filter system: Manufacturer/type unfortunately unknown flange dimensions DN100 -Individual components: see photos -Dimensions: 2020/1630/H2490 mm / 1850/800/H800 mm -Total weight: 1292 kg Rjdpfxjg I D Nye Abhew

Condition: ready for operation (used), Year of construction: 2012, functionality: fully functional, Extraction system Höcker Polytechnik Type: MultiStar JP5 Year: 2012 Capacity: 20,000 m³ Motor: 30 kW with briquetting press BrikStar c-3 18 Negative pressure system Filter surface area: 121.3 m² Filter bags: 100 pieces Bag length: 2,300 mm Bag diameter: 170 mm (outside, pressurized) Compressed air connection: 6.0 bar, 1" Operating pressure: 4.5 bar Compressed air consumption: approx. 216 Nl per bag row Footprint L x W: 2,540 x 2,420 mm Space required L x W: 3,500 x 3,380 mm Internal height: 4,430 mm Weight approx.: 1,960 kg Duct bend 90°, 2 mm, 900 x 800 mm, 1 pc Bolted design, galvanized steel sheet, 2 mm duct dimension 1: 900 x 800 mm, duct dimension 2: 900 x 650 mm, shape: asymmetric 460406 duct, 2 mm, 750 mm length, 900 x 800 mm - 2 pcs bolted, galvanized steel sheet, 2 mm 1 blank cover 2 mm, 900 x 800 mm 1 pc for MS xP on BrikStar Redpfx Abszc N Dpehow 1 pc 300 x 2,300 mm on existing briquetting press Manufacturer Gross (approx. 1,100 x 1,100 mm / press height: 1,260 mm)

Condition: used, Year of construction: 2017, functionality: fully functional, filter area: 69.2 m², overall weight: 1,336 kg, year of last overhaul: 2025, Equipment: CE marking, We are offering this used AL-KO EJ DUO 6 ZRS OV stationary dust extraction system, manufactured in 2017. Type: EJ DUO 6 ZRS OV Type number: P170701 Manufacturer's number: 2433376133 Year of manufacture: 2017 Filter area: 69.2 m² Weight: 1336 kg Air filter design: Category M, elect., 1.44 m Item number: 85100401 Filter hoses were replaced in November 2024. Compressed air cleaning with integrated compressed air tank – time-controlled. Includes all pipelines and valves (including 1 pneumatically controlled valve). The filter station has 6 connections for exhaust air intake. Includes 6 fans. Chip removal: after the filter station, there is a Vexat-compliant rotary valve airlock, a ring line with a fan, and a separation box, below which there is another Vexat-compliant rotary valve airlock. Currently, in winter, the chips are conveyed via a screw conveyor into the silo; in summer, they are filled into big bags. The system can currently be inspected while in active operation until the end of July. Collection by self-dismantling is possible from August 1st to no later than the week of August 3rd. Redpszbp Rmofx Abhow Only B2B sales, excluding any warranty. If you have any questions or require further information, please send us a message or call us.

Condition: excellent (used), Filter control valve, switching valve, maintenance unit, water separator, filter bowl, pneumatic filter, filter regulator, maintenance unit combination, filter control valve -Manufacturer: SMC, Maintenance unit filter control valve -Soft start valve: AV4000-F04-5Y0-X260-Q Rjdpfxjx Ryhcj Abhow -Pressure switch: I SE30A-01-P -Filter control: AW40-F04H-A -Switching valve: VHS40-F04A -Individual components: see photos -Price/Fee: complete -Dimensions: 340/120/H250 mm -Weight: 2.3 kg

Condition: used, functionality: fully functional, type of input current: three-phase, filter area: 150 m², suction capacity: 9,000 m³/h, Dust extraction, welding fume extraction, self-cleaning cartridge filter, pneumatic and vacuum-operated, suitable for plasma cutting, laser, sandblasting, soda blasting, shot blasting, and all types of dry dust. The filter is cleaned pneumatically by compressed air pulses during operation, ensuring high device efficiency. The fan is located on the clean air side, which reduces explosion risk to a minimum. Brand: Plymovent / Euromate Model: SCS Redpfey H Hkvjx Abhsw Cartridge filter elements – 2 pcs Filtration area: 150 m² Fan enclosed in a soundproof casing with noise silencer, power 7.5 kW. Fan model: CHB16LG03 Capacity up to 9,000 m³/h Inlet diameter: 400 mm Filtration efficiency: 99.8%

Condition: good (used), Year of construction: 1999, machine/vehicle number: 0118703/99-1, functionality: fully functional, power: 55 kW (74.78 HP), input voltage: 400 V, type of input current: DC, volume flow: 1,200 m³/h, intake manifold diameter: 150 mm, filter area: 8 m², For sale is a Bristol 'TF' B 250 extraction unit. The item is in good condition and is ready for immediate use. Device type: Extraction unit Model: BRISTOL 'TF' B 250 Motor power: 0.55 kW Airflow: 1,200 - 1,500 m³/h Connection voltage: 400V / 50Hz Extraction spigot diameter: 150 - 200 mm Application areas: Oil mist, emulsion mist, dust Year of manufacture / Serial number: 1999 / 0118703/99-1 Transport and loading can be organized throughout Europe at an additional cost, upon request. All prices are subject to VAT. Inspection possible by appointment. Please contact us—our team will be happy to assist you. Trade-in or exchange possible! Machinery Purchase / Sale PURCHASE / SALE OF PRODUCTION & METALWORKING MACHINES AND MORE. Rjdoy R Ax Repfx Abhew Are you looking for a high-quality but affordable metalworking machine for your production? Or do you want to sell yours? For more information or ways to contact us, please visit our website.

Condition: used, functionality: fully functional, Year of construction: 2008, Used filter system Manufacturer: Dantherm Year of manufacture: 2008 Type: FS 720/5.50/770 Volume flow: 72,000 m³/h Temperature: 120 °C Installed total area: 1047 m² Effective area: 990 m² Total connected power of all drives: 10 kW Exhaust system complete with duct system Chimney Redpfx Ajzav Euobhjw 3 x screw conveyors

Condition: used, Year of construction: 2008, functionality: fully functional, power: 1.75 kW (2.38 HP), input voltage: 400 V, input current: 3 A, volume flow: 2,500 m³/h, actuation type: electric, Equipment: CE marking, documentation/manual, X-Cyclone Ultra Cleaner Rsdpfoy H Ik Rex Abhjw Model UC Compact 2 Oil Mist Separator Air Flow: 2000 m³/h Dimensions: Overall Height: 820 mm Width: 545 mm Length: 780 mm Weight: 70 kg Noise Level in dB(A): 67 Connection Spigot DN 300 mm Housing made of painted sheet steel in RAL 5002 With integrated fan Incl. permanently attached silencer element With inserted, washable soundproofing mat 1 pc. tray with wheels Suspended Particle Filter Attachment; for UC 2 Com With H11 Suspended Particle Filter Type NF-HEPPA-C2 Attachment dimensions: 685 x 530 x 350 mm

Year of construction: 2001, condition: used, functionality: fully functional, Used wet and dry vacuum cleaner (dust extraction system) in good condition. Extraction capacity: 1,800 m³/h. Rsdpfx Aozb Ipusbhew

Condition: used, We are selling a used extraction unit, model IES 20-35-4 / 11MD, manufactured by Ulmatec. The drive power is 11 kW. If you have any further questions, please feel free to contact us! Redpexxxwcefx Abhew

Condition: used, Compact self-cleaning industrial filtration unit designed for the extraction and filtration of dry dusts and fume particles in continuous operation. Suitable for industrial applications such as grinding, sandblasting, welding, laser engraving, and machine processing. Condition: used. Manufacturer: HFILTRATION S.r.l. Model: PC MINI Rodsy Sbrxspfx Abhow Machine Type: Industrial Cartridge Filter Unit Condition: used Filter Type: Self-cleaning Cartridge Filter Application Area: Dry Dust Filtration Filter Cleaning: Pulse-jet compressed air cleaning Filtration Efficiency: below 5 mg/Nm³ Cartridge System: BGIA-certified filter cartridge Cartridge Height: 600 mm Dust Collection Container: 15 liters Compressed Air Connection: 3/4" F GAS Required Compressed Air Pressure: 5 to 6 bar Maximum Compressed Air Pressure: 6 bar Compressed Air Consumption: approx. 40 Nm³/h Electrical Configuration: with fan and motor protection switch Motor Protection: magnetothermal circuit breaker Voltage: 400 V ±10% Electrical Protection Class: minimum IP54 Operating Temperature: -10 °C to +40 °C HEPA Filter: optional H13 or H14 Applications: grinding, blasting, cleaning, welding fumes, laser engraving, machine processing CE marking: present Machinery Directive: 2006/42/EC EMC Directive: 2014/30/EU Low Voltage Directive: 2014/35/EU

Condition: good (used), Year of construction: 2012, functionality: fully functional, tank capacity: 4,000 l, pump capacity: 2,000 l/min, coolant tank capacity: 4,000 l, delivery pressure: 4 bar, RESY central filtration system, 2 x KBF 1001/2000 Year of manufacture: 2012 Total volume: 4,000 liters Filtration: Filter fleece System: 2 x 62/1000-KBF10001/2000-9.5-0 System flow rate: 2000 l/min (1000 l/min + 1000 l/min) System volume: 19 cubic meters (9.5 + 9.5 cubic meters) Supply capacity: 2000 l/min at 4 bar, medium: emulsion Filter system: 2 x KBF 1001/2000, filter principle: compact belt filter Purity: 20 microns Rodezbvpispfx Abhsw Filter flow rate: 2 x 1000 l/min (system-specific) Heating: 0 kW Cooling: 0 kW Machines: 8 cylindrical grinding machines, material: chrome-plated steel, cast iron, operating mode: fully automatic Color: RAL 7016, voltage: 400 V, frequency: 50 Hz The system was only in operation for a short period due to a relocation of production. Now, the site is to be rebuilt. Further technical data available upon request.

Condition: used, Year of construction: 2010, PARAMIX unit for carbonated drinks. The included process steps are: Deaeration of water, dosing and mixing of water and syrup, carbonating of water-syrup blend. Retrofit 2009 by FAMIX: - Carbonating device - CO2 pressure-temperature ratio controller Type BMS7 The controller including control cabinet is to be completely renewed when the machine is purchased. Additional title: mixing unit 1983 - 2010 Capacity approx.: 150 hl/h Mixing and carbonating Length: 2,9 m Width: 2,5 m Height: 2,5 m Weight: 3000 kg Operation / Control: mixing unit semi automatic, carbonating unit automatic Siemens S7 Material: Stainless steel Position: Frame mounted Features: 2 pressure vessels (Product und Vacum), each 8,3 hl/ 8 bar, CO2-Pressure-Temperature regulator (FAMIX BMS7), Carbonising unit (FAMIX) Capacity 13000 l/h, PT 100, Pressure sensor, Pressure relief valve, CIP connection, control cabinet, HMI (Siemens), 2 mixing vessels with flap and agitator (Ahlborn, approx. 15 hl per vessel) Redpfx Abexbn Hrohew

Year of construction: 1994, condition: excellent (used), Extraction system Scheppach HA 3200 Rsdpfjghrvxsx Abhjw

Condition: new, Year of construction: 2026, functionality: fully functional, input voltage: 230 V, suction capacity: 1,200 m³/h, total height: 610 mm, total length: 800 mm, total width: 625 mm, overall weight: 100 kg, The LTA E 120 air filter extraction system is an electrostatic filtration system specifically designed for the separation of oil and emulsion mists in industrial applications. Such systems are characterized by consistently high separation efficiency and contribute to sustainable production. Rjdpfxjv S E H Uj Abhew A key feature of LTA filtration systems is the automatic cleaning in place (CIP) system, which ensures consistently high filtration efficiency and long-term operational reliability. This system automatically cleans the filter elements with the cooling lubricant used in the machine, without the use of chemical additives or diluted solutions.

Condition: new, Year of construction: 2026, functionality: fully functional, input voltage: 400 V, suction capacity: 1,200 m³/h, total height: 2,970 mm, total length: 930 mm, total width: 930 mm, overall weight: 250 kg, LTA (JUNKER Group) mechanical dust filtration systems capture and remove dust and fumes in industrial applications. They use cartridge or bag filters to reliably capture even the finest particles. Thanks to automatic filter cleaning, they offer consistently high separation efficiency and are available as mobile or stationary systems. Rjdsv S E Ncepfx Abhew

Condition: excellent (used), Year of construction: 2022, Holzkraft Raw Air Extraction System Type: ASA 7703 For milling, planing, and saw chips (not suitable for dust) The 180° rotatable extraction unit allows suction guidance from below or above Robust metal impeller Equipped as standard with a high-quality mobility kit for increased stability and easy maneuvering Quick-release fasteners for filter and chip bag Dimensions and Weights: Length (approx.): 1900 mm Width/Depth (approx.): 670 mm Height (approx.): 2800 mm Net weight (approx.): 88 kg Chip collection volume: 2 x 290 l Outer diameter of inlet extraction nozzle: 260 mm Outer diameter of outlet extraction nozzles: 3 x 120 mm, 1 x 100 mm Electrical Data: Motor speed: 2950 rpm Connection voltage: 400 V Power supply frequency: 50 Hz Input power: 4.8 kW Output power: 3.8 kW Filter: Rjdpjy Ahpxefx Abhsw Filter area: 2 x 5.98 m² Noise Emission: Maximum sound pressure level: 98.3 dB(A) Airflow: Nominal airflow: 7700 m³/h Maximum negative pressure: 2800 Pa Location: Available from stock, 54634 Bitburg - Immediately available -

Condition: used, Ex-protected filter unit, extraction system, central extraction cartridge - impulse filter P. RIES GmbH Type 330 D ATEX Cartridge filter system, rectangular filter unit, central welding fume extraction Machine no. 10011932 Year of manufacture: 2020 - as new, unused Airflow rate: 3,300 m³/h Airflow rate: 0.9 m³/sec Filter area: 20 m² (1 piece cartridge filter) Differential pressure: 3,300 Pa (33 mbar) Extraction connection at filter inlet: 2x Ø 150 mm Exhaust connection at filter outlet: sound insulation hood Compressed air connection: approx. 8 bar Motor power: 3 kW Mains connection: 400 Volt, 50 Hz - Explosion-protected design ATEX II 2Db 125°C / 3G T4 - Pneumatic rotating filter cleaning, manual via push button - Manometer for differential pressure display (vacuum display in mbar) - Service door for filter replacement Rsdpfey N Duqjx Abhow - Filter stage 1 = 1 cartridge filter Ø 325 mm, length 900 mm P-RIES, type cartridge filter 20.1 m², BGIA/IFA class M, antistatic - Filter stage 2 = filter outlet (sound insulation hood) equipped with 9 activated carbon filter cartridges, type AKZ 2500V, 266 m³/h per filter cartridge - Built-in radial fan, type IE 3-premium efficiency, 12% improved efficiency - Robust steel construction in RAL 7035 light grey, antistatic powder-coated - Dirt collection container as pull-out drawer approx. 70 litres (440 x 530 x 300 mm) - EC Declaration of Conformity, operating instructions with wiring diagram available Required space (L x W x H): 670 x 700 x 2430 mm Weight extraction unit: 211 kg Transport dimensions on pallet (L x W x H): 930 x 1350 x 1950 mm Weight incl. transport pallet: 236 kg As new, unused, ex stock

Condition: used, functionality: fully functional, Complete smoking system for butcher shops/food processing, supplied as a set – ready for operation and including all accessories for immediate use. Scope of delivery: • 1 × L'Unité Stein RAKO 3001 smoking cabinet (used) • 1 × Tecumseh Silensys H84Z refrigeration unit • 1 × Stein RRT M exhaust system (for V21 smoking cabinet), including stainless steel pipe, 30 linear meters, Ø 20 cm • 407 pieces of knot-free beech smoking wood (8 × 6 × 40 cm) Condition: • Used, well-maintained • Regularly serviced • Operating log available Location: Selters. Collection or transport from the location is possible. Further photos and details available upon request. Technical data: Smoking cabinet: L'Unité Stein RAKO 3001 (used) Redpfx Aboza Ah Nshew Refrigeration unit: Tecumseh Silensys H84Z Exhaust system: Stein RRT M (for V21 smoking cabinet) Stainless steel exhaust pipe: 30 linear meters, Ø 20 cm Smoking wood included: 407 pieces of knot-free beech wood, 8 × 6 × 40 cm Condition: used, well-maintained, regularly serviced Location: Selters

Condition: used, Year of construction: 2006, functionality: fully functional, input voltage: 400 V, input frequency: 50 Hz, type of input current: three-phase, intake vacuum (max.): 2,400 mbar, suction capacity: 6,000 m³/h, intake manifold diameter: 300 mm, filter area: 30 m², total height: 2,350 mm, total length: 3,000 mm, total width: 1,100 mm, overall weight: 900 kg, Dust extractor, chip extractor, self-cleaning pneumatic vacuum filter Alko Mobil Power JET 300 The filter is pneumatically cleaned with compressed air pulses during operation, ensuring high device efficiency. Rodjy A Iwcspfx Abhew The fan is mounted on the clean air side, minimizing the risk of explosion. Ideally suited for wide belt sanders and all types of dry dust generated in various technological processes. Fan power: 7.5 kW Capacity: 6000 m3/h Vacuum: 2400 Pa Connection diameter: 300 mm Air return Stock number: 1130