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 125mm Wall Duct - 350mm1 x Flexible PVC Ducting - 220x901 x MPC 400 EC T30 - High Temp Acoustic Box Fan1 x Flakt woods ME 1.1 speed controller 1amp1 x AL 500 D2 01 AXIALINE - High Performance Long Cased Axial Fan1 x FAST-TRACK RANGE 75mm - Straight Connector1 x 125mm - 100mm Round Reducer1 x Systemair Save Touch Control Panel - White1 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)1 x AMD 250/4 - Medium pressure axial fan 3-PH 400 V1 x FAST-TRACK RANGE 75mm - Adjustable Air Restrictor1 x JPA-1100 Accessory Adapter Plate1 x 125mm Round 90 Degree Bend1 x Flexible PVC Ducting - 110x541 x 2mtr Round Ducting - 125mm1 x 125mm Round Condensation Trap1 x FAST-TRACK RANGE 75mm - Semi-Rigid Duct 50M1 x HQD 710/4/4 Plate Axial Fan (2.2kw)1 x CLEARANCE ITEM- Rosenberg EQ 300-2 plate axial fan - Only 1 Available1 x FAST-TRACK RANGE 75mm - Seal Ring (1 bag of 10)1 x AMD 225/4 - Medium pressure axial fan 3-PH 400 V1 x Vent Axia KAF Kitchen Extract Fan - 500mm - 2 Pole - Three Phase1 x Universal Pipe Fixing Clip1 x Metal Inline Fan - VENT-400K - T (3 Phase)1 x FSD-TD 225mm Fire and Smoke Damper, Type C, EASY FIX AF, GALV Case, GALV Blades, PM230-TF (SC)1 x EC-Vent control board1 x Hydor HPA450/6-1A1 x FSD-TD 180mm Fire and Smoke Damper, Type C, EASY FIX AF, GALV Case, GALV Blades, PM230-TF (SC)1 x Etamaster EM 200 EC 01 inline mix-vent fan1 x EM30-24 Control Panel Commissioning Service1 x Soler & Palau TCBT/4-800/K - IP651 x KVK Slim 160 - Low profile Semi Acoustic Box Fan1 x Jetflow-HIT Metal inline - 250mm
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 ...