100mm Circular (4")

Full range of 100mm (4") Circular duct fittings
Displaying 1 to 13 (of 13 products)
100mm - 125mm Round Reducer
100mm - 125mm Round Reducer
£ 1.54
100mm to 125mm Round Reducer...
100mm Round 45 Degree Bend
100mm Round 45 Degree Bend
£ 2.99
100mm Round 45 Degree Bend Connector for round plastic duct systems....
100mm Round 90 Degree Bend
100mm Round 90 Degree Bend
£ 2.99
100mm Round 90 Degree Connector for round plastic duct systems....
100mm Round Condensation Trap
100mm Round Condensation Trap
£ 16.08
Condensation trap for use with plastic round duct of 100 diameter. Prevents condensed water from running back down the duct towards the fan in vertical PVCu ducted applications. Not suitable fo...
100mm Round Connector
100mm Round Connector
£ 1.65
Plastic Inline Duct Connectors - 100mm....
100mm Round Connector with Damper
100mm Round Connector with Damper
£ 3.32
100mm Round Plastic Duct Connector with Damper...
100mm Round Equal T Piece
100mm Round Equal T Piece
£ 3.65
100mm Round Equal T Piece PVC T-Piece to connect to round ducting....
100mm Round Wall Plate
100mm Round Wall Plate
£ 1.39
100mm Round Wall Plate...
100mm Wall Duct - 350mm
100mm Wall Duct - 350mm
£ 2.33
Wall Duct - 350mm For bridging cavities or lining solid exterior walls. Mortared into position. ...
150mm - 100mm Round Reducer
150mm - 100mm Round Reducer
£ 3.35
150mm - 100mm Round Reducer...
1mtr Round Ducting - 100mm
1mtr Round Ducting - 100mm
£ 6.49
Round plastic ducting Pressure drops for 100mm circular - 1 meter 15l/s = 0.5PA 30l/s = 1.4PA 60l/s = 3.10PA...
2mtr Round Ducting - 100mm
2mtr Round Ducting - 100mm
£ 11.99
Round plastic ducting Pressure drops for 100mm circular - 2 meter 15l/s = 1.00PA 30l/s = 2.80PA 60l/s = 6.20PA...
Universal Pipe Fixing Clip
Universal Pipe Fixing Clip
£ 1.10
Universal Pipe Clip, suitable for use with PVC round ducting from sizes 100mm to 150mm. For installation guide click HERE...
Displaying 1 to 13 (of 13 products)
1 x Elta SPA450/46-3AC - IP541 x Ducting Y Piece - 355mm1 x Ducting 90 Degree Bend - 315mm1 x JCA-1100 - Back Draft Shutter for CRHB/CRHT Roof Fans1 x Etaline 200 - EC1 x Elta SCP450/4-3AC - IP551 x Elta Wall Cowl SWC35/401 x GRA-100 External Grill by S&P1 x Helios HQW-450/6 - IP551 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x Classic SAX23/9A Window/Wall Mounted1 x Classic SAX23/9ARB Wall Mounted1 x Atex Inline Fan 200mm - ERM22EXE1 x HXP450/6-1 - 6 Pole - Single Phase1 x HXP450/4-1 - 4 Pole - Single Phase1 x Soler & Palau - HCBB/6-450/H - IP651 x Easy-fix termination kit - High Rise Ventilator - EFT1 x Hydor HPA450/6-1A1 x Gorilla HVLSX301 x Elta SPA450/4-1AC - IP541 x External weather louvre 500w x 500h - WL501 x HV-RC 230mm (With Wall Kit)1 x HRB/4-450-35-BPN1 x Elta SCP450/4-1AC - IP551 x Gorilla HVLSX40S1 x Classic SAX30/12ARB Wall Mounted1 x Soler & Palau - HCBB/4-450/H -IP65 - BFLOW1 x HRB/2-200-BPN1 x Male Ducting Connector - 160mm1 x Flanged Spigot - 315mm1 x Duct Wrap Insulation - AWDW25mm1 x CBM 10/8 6P 245W RE VR1 x Helios Condense Collector1 x Double Inlet Forward Curved Centrifugal Fans - FDA-400-SMD-301 x Singleflow SSDL400-1EC1 x Flexible PVC Ducting - 204x601 x 204x60mm x 1000mm Long Hi-Flow Duct Silencer1 x Universal Pipe Fixing Clip1 x 100mm Round Connector1 x Ducting 15 Degree Bend - 100mm1 x CBM Low Pressure Centrifugal Fan - CBM 9/9 6 Pole 300watt VR RE1 x CPTA-E Flush mounted PIR sensor with timer1 x 220x90mm Insulated Rectangular Horizontal 90° Bend1 x 204 x 60mm Duct to Fitting Connector for use with Insulated Thermal Ducting1 x Kitchavent 2000 Odour control System1 x Commercial Thermostat - TH16
Reviews
Circular Inline Silencers - 0.6M long - SLU-600
Circular Inline Silencers - 0.6M long - SLU-600
£ 50.56

I have a loft mount extractor fan which was very noisy. I ...