• Model:DR-L300-250mm

Ducting Reducers Long - 300mm-250mm

£ 28.86 (excl. VAT)

£ 34.63 (inc. VAT)

Long Reducers for 300mm spiral ducting.
Provides two male fittings to insert into spiral.

Select size below.

Please note these are for reducing and fitting inside ducting.
To mount directly onto a fan spigot or other 'male' fitting you will need a Female ducting connector.
2 x RTRD - Three Phase Speed Controller - 2 Amp2 x Compact SCD450/4-3AC1 x FRQ-10A V2 Inverter Speed controller1 x Helios TSD 3.0 Transformer Speed Control (400v)1 x Inverter - IDDXF54-2.21 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x FU 075 04 Frequency Inverter (IP20)1 x Frequency converter RUCK - FU 075 211 x FU 22 04 Frequency Inverter1 x NKS-D swirl diffuser v-300 x 300mm1 x ELTA - Three Phase Transformer 10amps1 x Elta Variable Speed Drive IP66 - 2.2KW (1ph to 3ph)1 x ATEX rated 3-phase Speed Control - R-DK4 KT (EX)1 x FU 15 16 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 5.5KW1 x Elta Variable Speed Drive IP66 - 1.5KW1 x Frequency converter RUCK - FU 075 201 x Frequency converter FU 075 14 - IP661 x FU 075 52 Frequency Inverter (IP20)2 x FU 22 25 Frequency Inverter1 x Helios VDS-7 Three Phase Transformer 5-Step1 x Helios TSD 5.5 Transformer Speed Control (400v)1 x Versio Square Ceiling Diffusers - RS141 x JSR 200 Painted RAL50181 x Curved Blade Grille 600x600 (2way blow)1 x Circular Ceiling Diffuser - TST 2002 x Versio Square Ceiling Diffusers - RS141 x Circular Ceiling Diffuser - TST 1001 x PCA Diffuser - PCA-3151 x Balance S Diffuser - NO RING - 125mm2 x Round ceiling diffuser 300mm2 x Round ceiling diffuser 200mm2 x Transformer speed controller - ATC1 - 1.5 Amps1 x Balance S Diffuser - NO RING - 100mm1 x PCA Diffuser - PCA-2501 x Round ceiling diffuser 350mm2 x Run On Timer - 5s - 4hrs - RT5A2 x Remote Timer Control - 13511 x Multi Input Run On Timer - 0 - 20min - CFCU1 x Time Delay Unit - DT20B1 x Helios ZNE Electronic Fan Overrun Timer1 x 7 Day Programmable TIMECLOCK1 x TTC-2000 Three phase electric heater controller2 x ACOAS/ AC/EC Auto Changeover 8Amp2 x Elta ACO Panel 149-ACO14E1 x EM30-24 Electro-Mechanical Control Panel1 x Easy-fix termination kit - High Rise Ventilator - EFT1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x CONTROL ECOWATT - Basic1 x Elta Variable Speed Drive IP66 - 0.75KW (1ph to 3ph)1 x Elta ACO Panel 149-ACO18B1 x EC-Vent Room Unit1 x Compact SCD500/4-3AC2 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3552 x Systemair Save Connect 2.0 Internet Module1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection1 x EM30-24 Control Panel Commissioning Service2 x Elta Wall Cowl SWC56/631 x Elta Louvre Shutter - 400mm1 x GRA-100 External Grill by S&P1 x Elta Wall Cowl SWC45/501 x Elta Wall Cowl SWC25/311 x Elta Wall Cowl SWC35/401 x Jet Cowl - 315mm1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 7101 x Egg Crate Grille with G2 Dust panel filter 1 inch- 300x3001 x Single Deflection Grille 400mm with OBD damper1 x Non Vision 150mm x 150mm (Air Transfer) Grille - With Flange - MILL FINISH3 x Mini Diffuser - 100mm1 x Flanged Damper 019-0500-STD1 x AL 450 EC 03 AXIALINE - High Performance Long Cased Axial Fan3 x HIMF - Mixed Flow Fan 125mm Inline Fan2 x Jetflow-HIT Metal inline - 125mm1 x AW Sileo EC Plate Axial Fan - Three Phase - 1000mm1 x CRBB/3-250/084M EC 2H01 x D2E-146-AP47-751 x Economy Airvent 100mm Fan with Timer & Shutter1 x Manrose XF100HTLVT- Clearance1 x CTVT/4-400 High Temp Roof Fan - 51369260001 x AL 315 EC 01 AXIALINE - High Performance Long Cased Axial Fan1 x HIMF - Mixed Flow Fan 100mm Inline Fan1 x AW Sileo EC Plate Axial Fan - Three Phase - 800mm1 x HQS Bathroom Axial Flow Fan - 125mm1 x AW Sileo EC Plate Axial Fan - Three Phase - 630mm1 x Elta - SMT 125 Mixvent Inline Fan - Clearance Stock Line1 x Capacitor 2uf for use with the EBM A4E range1 x Maico EN31- Wall Mounted Fan1 x Fresh Air control carbon filter - 125mm1 x Soaker Sheet to suit RA400/4501 x LF-ME04F071LC3AC1 x CAB-355 ECOWATT Energy Efficient Acoustic Box Fan1 x H14 Hepa Portable Air Purifier - PAP 350 CA H14 with Carbon Filter2 x Carriage for Scottish Highlands1 x CRBB/3-160/052M EC 1H0 MP - Radial Impeller - 160mm1 x Jetflow-HIT Metal inline - 160mm1 x CRBB/3-190/060M EC 1HO MP - External Rotor Motor Radial Fans1 x ME04F063LC3AA - Asynchronous motor - Three phase1 x AW Sileo EC Plate Axial Fan - Three Phase - 710mm1 x CAB-400 ECOWATT Energy Efficient Acoustic Box Fan1 x CAB-315 ECOWATT Energy Efficient Acoustic Box Fan1 x CAB-250 ECOWATT Energy Efficient Acoustic Box Fan1 x FlameProof Plate Axial Fan - Single Phase - 9 inches - Eexd IIC T4 -4pole2 x EBM-Papst D3G133-BF05-14 Double inlet1 x Direct Delivery Surcharge - Pre 12:001 x Small Centrifugal Fan - CBM/4-160/150-125 W1 x Small Centrifugal Fan - CBM/4-180/184-150 W1 x HRB/6-451/20-BMVPN - Special Offer1 x BD7/7 centrifugal M4 0.13Kw1 x D2E146-HT67-021 x Small Centrifugal Fans CBM/2-146/180-300 W1 x Impeller Side Guard - 500mm1 x Roof Cowl Vent - 710mm1 x RCZ 300 - Fibreglass Roof Cowl1 x W2S130-AA03-011 x PPF4 - Positive Pressure Supply Fan1 x Eco-Loft Positive Input Ventilation System - PIV Loft Mounted -EVL-HW1 x Helios DDF-250 Roof Cowl1 x Roof Axial Cowl - RAW500 / 5601 x MEV Spider Additional Spigots1 x Eco-Loft Positive Input Ventilation System - PIV Loft Mounted -EVL-H1 x Circular Inline Silencers - 600mm - 600mm1 x Eco-Loft Positive Input Ventilation System - PIV Loft Mounted -EVL-HWAS1 x Flat Roof Terminal -OFT 5 - EPDM1 x Roof Axial Cowl - RAW3501 x Additional Colour change for RAW 630 (12-B-29)1 x Roof Axial Cowl - RAW400/4501 x Flat Roof Terminal -OFT 1 - Felt & Asphalt 110mm1 x Roof Axial Cowl - RAW630 / 7101 x Dektite Combo Pipe Flashing - DC210REC1 x OZEO H ECOWATT 2 - Humidity Adjustable Wholehouse Ventilation1 x Roof Axial Cowl - RAW2501 x Vent Axia ACM 100 inline mixed flow duct fan1 x Vent Axia ACM 200 inline mixed flow duct fan1 x Vent Axia ACM 125 inline mixed flow duct fan1 x EFSC-3N- Single Phase Speed Control2 x Transformer (silent) speed controller - RE 1.5 Amp1 x TD Mixvent 800/200 EEXEIIT31 x Electrostatic Precipitator - 1H x 3W2 x SAVE VSR 300 heat recovery unit1 x CSB-60 Centrifugal fan1 x ACO8AC/EC AutoChangeover panel1 x DS-2 2-Speed Switch (3 Phase)1 x Duct Termination with Mesh - 100mm1 x LFBR 315 G4 - Helios Inline Filter Box - 315mm1 x Round ceiling diffuser 250mm1 x Single phase speed controller by auto-transformer - RMB 8.0 Amp1 x KBA- inlet mounting flange for CRMT 2501 x CBM 7/7 147w 4P RE-VR1 x CFI In-line 150 - Carbon Filter1 x EBM-Papst D4E225-BC01-17 Double inlet2 x Helios RR-250-C Centrifugal inline fan2 x VTR 500 STD Filter Kit1 x KBA- inlet mounting flange for CRMT 2251 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR2 x CBP-9/7-RC1 x Flat Roof Terminal -OFT 5 - Asphalt1 x KBA- Inlet Mounting 2251 x CBB-60N Centrifugal1 x GENIOX 11 Roof Mounted External Unit1 x CBA-100 Inlet Flange for CBT-1001 x ELTA - Three Phase Transformer 3amps1 x ELTA - Single Phase Transformer 2amps1 x Elta Standard Ambient Flexible Connector - 250mm1 x Spiral end cap - 250mm1 x Redelivery Charge1 x Elta SCP400/4-3AC - IP551 x Ducting T Piece Equal - 100mm1 x Chaysol da 9-7 - V7099331 x Chaysol Da 15/11 CMAL - 2200W 6 Pole - Closed Motor - Three Phase1 x Chaysol Da 12/12 CMAL - 736 Watt - 6 Pole1 x EB-100N S - Centrifugal Fan1 x G2 duct mounted panel filter 315-3551 x HPA Heavy Duty Flexible Ducting - HPA300-FD51 x Manrose T12 STANDARD Transformer- T12S1 x Jetflow-HIT Metal inline - 100mm1 x DV-ROF-V-225 Roof mounted unit1 x Manrose T12 TIMER Transformer- T12T1 x Ancillary Pack for SLC-5601 x CBTR/2-451-4kw1 x 220x90mm Rectangular to 150mm Round Adaptor1 x Spiral Ducting 1 meter - 100mm1 x Same Day Shipping Surcharge - City Sprint1 x DPD SATURDAY Delivery Surcharge1 x CAB-150 ECOWATT Energy Efficient Acoustic Box Fan1 x Jet Fan IV 100-4 IE3 Induction Fan1 x FAST-TRACK RANGE 75mm - Valve Adaptor 90° 125mm1 x AEL - Outlet Flexible Connection for TLZ450 R2 x CMT-2 180/75 0.75KW - Single inlet centrifugal fan with inlet and outlet flange connections - 200mm1 x 150mm Round Connector2 x JETLINE-100 ECOWATT - In Line Centrifugal Duct Fan1 x Ducting 90 Degree Bend - 80mm1 x ME04F063LC1AF1 x Manrose 150mm - XF150BP1 x ELTA - Single Phase Transformer 10amps1 x Lo-Carbon Sentinel Kinetic BH - LEFT1 x Manrose 150mm - XF150BHP1 x CBM 12/9 CM/AL 1100W 6PT - Closed Motor1 x SG AW 1000 Guard 6-Pole1 x Filter Box With F7 Grade Bag Filter - 200mm1 x Spiral Ducting 1 meter - 250mm1 x Elta Standard Ambient Flexible Connector - 315mm1 x MV EC 150 Multivent1 x Elta SCP710-1EC1 x Control board kit Smarty 4X P 1.1 F2 Fan 230V1 x Economy Airvent 100mm Fan with Timer/Humidistat/Pullcord1 x Heat Resistant In-line Axial Fan - VO-901 x Elta SCP630/4-3AC - IP551 x DA9/9 Feet1 x Elta SLC800/4B-3AC - IP551 x Elta SPA500/6-1AC - IP541 x AL 315 D2 01 - High Performance Long Cased Axial Fan (3 phase)1 x 2mtr Round Ducting - 100mm1 x Elta SCP450/4-3AC - IP551 x Access Door for Circular Duct - 400 x 300 - SIZE 451 x Chaysol da 9-91 x Duct Mounted Filter Box With G2 Paper AND Metal Washable Filter - 150mm1 x GX6 Wall Kit1 x Elta SLC560/4A-3AC - IP551 x Jetflow Silent SJMF-S 150-1EC1 x Spiral end cap - 100mm1 x Ducting 90 Degree Bend - 100mm1 x MPS 225 D2 F4 301 x Metal Inline Fan - VENT-100NK1 x Anti Vibration Mounts - Small - Pack of 4 - AVM21 x Bathroom Fan -Envirovent- Silent 100 S (Standard Model)1 x Clearflow CFHT Kitchen/High Temp Roof Fan - CFHT400/4-3AC1 x Jetflow-HIT Metal inline - 150mm1 x MRAS series fan1 x Elta SLC560/4B-3AC - IP551 x 100mm Round Equal T Piece1 x Digital Room Thermostat - DRT1 x TRA 1120-1250 - Crossbeam for AL 1120 & 1250 Fans1 x AW 550 D6-2-EX Explosion Proof Axial Fan - ATEX1 x Silent 300 HTP1 x Mounting Feet (Pair) for SLC-450-060B-04501 x Elta Quietflow Twin SQT250-1ECL1 x MPS Weather Housing1 x Soler & Palau TCBB/4-355/H - IP541 x Chaysol DA 12/12 NT (V600009)1 x 100mm Round 90 Degree Bend1 x Spiral end cap - 400mm1 x Ancillary Pack for SLC-6301 x EBM-Papst K3G160-BD02-01 Double inlet1 x Ducting 90 Degree Bend - 150mm1 x Soler & Palau - Contra Rotating TCBTx2-560 - IP651 x Ancillary Pack for SLC-4501 x 125mm Round Equal T Piece1 x Differential Pressure Switch - 20 - 300 Pa - IP651 x Nicotra RDH E4-0250 (K)1 x Elta SPA630/6-1AC - IP541 x BD9/9 centrifugal M4 0.35Kw1 x Elta SCP250-1EC - IP551 x Elta SCP250/4-3AC - IP551 x CBMT/Q 315-90 3 HEATER KIT1 x Soler & Palau TCBB/4-450/H - IP651 x Chaysol DA 12/9 NT (V600008)1 x Jetflow Silent SJMF-S 250-1EC1 x JETLINE-200 - In Line Centrifugal Duct Fan1 x Ducting T Piece Equal - 630mm1 x CAB-200 ECOWATT Energy Efficient Acoustic Box Fan1 x AW Sileo EC Plate Axial Fan - Three Phase - 560mm1 x 150mm Round 90 Degree Bend1 x TD1300 Mixvent - 250mm1 x Impeller Side Guard - 315mm1 x G2E160−AL19−56 FLUE FAN1 x Revolution SLCX ATEX Long Cased Axial Flow Fan SLCX400/2-3 Three Phase1 x D2E146-AP47-331 x 1mtr Round Ducting - 100mm1 x Atex Motor Protection Switch - U-EK230E EX1 x 125mm Round 90 Degree Bend1 x IRAB/4 315A N 230V50Hz 355/100 VE - In-Line Duct Fans - 51329333001 x 204x60mm Rectangular to 125mm Round Adaptor1 x Helios TSW 3 Amp Transformer speed controller1 x REU 1.5amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost1 x Isolator Switch - ISOSW1 x COM-31 x BEAS-control module1 x Two Speed Switch - REGUL-21 x Single phase speed controller by auto-transformer - RMB 1.5 Amp1 x Helios HQW-200/2 - IP551 x Elta 6 Amp Electronic single phase speed controller with TK1 x REE-1 Electronic Speed Controller2 x Speed Controller - REB51 x WS - Reversing Switch from Helios Fans1 x Rectangular Airbrick Adaptor1 x Speed Controller - REB101 x Transformer (silent) speed controller - RE 3.0 Amp1 x TD EVO-100 PF ECOWATT - Environmentally Friendly Energy Efficient Inline Fan1 x EBM-Papst D2E097-BK76-98 Double inlet1 x REE-2 Electronic Speed Controller1 x REB-CVF 0-10v Controller1 x KMBI 180 Connector rectangular/circular to install on the discharge of CMT2 x MTP 10, 10K, Speed control1 x Transformer (silent) speed controller - RE 5.0 Amp1 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)1 x FFR 355 Filter Cassette1 x PIR Sensor - PIR41 x Elta Variable Speed Drive IP66 - 0.75KW1 x Speed Controller - REB11 x RDH FLEX-SQUARE - ADH/RDH 04501 x Silent 100 Window Kit - windowS2 x Commercial Single or 3 phase Fan Reversing Switch - RS11 x Speed Controller - REB2.5-N1 x Transformer Speed Control - RTRE- 7.0Amp1 x Skyflow SSR Horizontal Roof Cowl SSR31/35B1 x TG-K3/NTC10-01 - Duct temperature sensor1 x CBM 9-9 550w 4P VR (Open Motor)2 x Vent Axia Silent 100T (TIMER)1 x Transformer Speed Control - RTRE- 3.0Amp1 x MTS10- extractor fan 3 step switch1 x Quietflow SQS400-1ECL - Centrifugal Box Fan1 x Speed Controller - REB161 x CBA-60 Inlet Flange for CBT-602 x VTR 300 STD Filter Kit2 x DDMP 09/09 Mounting Flange1 x DEF-CBM-RE-7 - Protection Guard1 x Elta Variable Speed Drive IP66 - 4.0KW1 x MEV Spider Wireless boost Switch - MEV-SWH-W1 x CBT-100N Centrifugal1 x Elta 3 Amp Electronic single phase speed controller.1 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)1 x Elta - Room Sensor - Temp/Humid/C021 x Contactor Interface Station - CI91 x QPTW 250C Acoustic Twin Fan with Controller1 x Elta 6 Amp Electronic single phase speed controller.2 x AIRVENT speed control - AIR4019611 x Elta Variable Speed Drive IP66 - 2.2KW1 x DDMP 09-09 3F 2130W M6A4 DG01 x Transformer Speed Control - RTRE- 1.5Amp1 x RS 80-50 L3 sileo. Centrifugal Rectangular Duct Fan1 x KKS 100 silencer-section - For use with the MUB 100 size Fans.1 x 110 x 54mm Round to Rectangular Adaptor - Long2 x Duct Termination with Mesh - 150mm1 x Silentub - STUB 1001 x WSD 100 (1060x1060x70)1 x CBP-18/18-RC Belt Driven Centrifugal Fans1 x Helios ESA-1 Surface mounted Speed Control 1amp1 x Duct Termination with Mesh - 450mm1 x Binks Bullows - Spray Booth Filter1 x CO2 Room Sensor - CO2-R1 x DPD 12PM Delivery Surcharge1 x RUCK MTP 20, 10K, Speed control1 x Universal Pipe Fixing Clip1 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt VR1 x DS-2/2 2-Speed Switch IP54 (Single Phase)1 x SPI-200 C Iris damper1 x CBT-130N Centrifugal ATEX II 3D ExtD 125*C1 x CBP-7/7-RC1 x RD35S-4DW.6W.3L - 122297 (Three Phase)1 x Potentiometer EGH 01 - for DDMP Fans1 x CBM Low Pressure Centrifugal Fan - CBM 9/7 4 Pole 373watt CVR1 x AKOR Mounting Plate for GD model(VIM166423)1 x Silentub - STUB 2001 x CAD-COMPACT 900 ADVANCED N8 - MVHR unit1 x SDD-U Anti Vibration Pads1 x CBT-130N Centrifugal1 x 100mm Round Connector with Damper1 x KAD-355-F400 Rectangle Flexible Connector1 x IR24-P - Presence detector1 x DDMP 07/07 Mounting Flange1 x ELTA - Single Phase Transformer 16amps1 x DDMP 10-10 FLANGE1 x 110 x 54mm Short Rectangular to Round Adaptor male1 x DDMP 07-07 1F 1100W M6AO DA51 x Elta Standard Ambient Flexible Connector - 630mm1 x Ducting 45 Degree Bend - 710mm1 x Soaker Sheet to suit RA3501 x FlameProof Plate Axial Fan - Single Phase - 12 inches - Eexd IIC T4 -4pole1 x Acoustic Box Fans (Inline) - CAB-1001 x Soler & Palau - Contra Rotating TCBTx2-450 - IP651 x Ducting 45 Degree Bend - 180mm1 x Chaysol DA 15/11 NT (V72600038) with mounting feet1 x Helios DDF-400 Roof Cowl1 x 110 x 54mm Low Profile Plastic Ducting - 2 Meter1 x Mounting Feet (pair) for 30JM.33.BIF Fans1 x Purlin Box 200/250 for RAW Cowls1 x G2 duct Mounted Panel Filter - 595 x 525 x 22mm1 x Metal Inline Fan - VENT-200NK1 x A Duct Mountable - Double Drilled Fixing Flange (PAIR) - 355mm1 x Nicotra ADH E0-0450 (L)1 x Roof Axial Fan and Cowl including soaker sheet. - Three Phase -1000mm1 x Helios AV125 External Wall Fan
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