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 400mm x 400mm Metal Grille Box - 250mm Side Entry1 x Duct Termination with Mesh - 355mm1 x Flanged Spigot - 125mm1 x 204x60mm 90 Degree Horizontal Bend1 x 220 x 90mm Duct to Fitting Connector for use with Insulated Thermal Ducting1 x Spiral Ducting 3 Meters - 1000mm1 x Male Ducting Connector - 1000mm1 x Ducting 90 Degree Bend - 1000mm1 x Ducting 30 Degree Bend - 1000mm1 x Ducting 15 Degree Bend - 1000mm1 x 204x60mm Insulated Rectangular Horizontal 90° Bend1 x Ducting Y Piece - 1000mm1 x 204x60mm x 1m Insulated Rectangular Duct1 x 220x90mm x 2m Insulated Rectangular Duct1 x 1mtr Insulated Round Ducting - 125mm1 x 204x60mm to 125mm Insulated Straight Adapter1 x Insulated extract Plenum 8+11 x 125mm Thermal Duct to Fitting Connector - SST-125-DFCON1 x 220x90mm Elbow Plenum with 160mm Spigot1 x 2mtr Insulated Round Ducting - 125mm1 x 125mm Insulated 90 Degree Bend1 x 220x90mm Insulated Rectangular Horizontal 45° Bend1 x 204 x 60mm Duct to Fitting Connector for use with Insulated Thermal Ducting1 x Spiral Ducting 1 meter - 125mm1 x Spiral Ducting 3 Meters - 100mm1 x Male Ducting Connector - 250mm1 x Elta SLC1000/6A-3AC - IP551 x Duct Fast Clamps - 125mm1 x Ducting 45 Degree Bend - 100mm1 x Ducting Y Piece - 125mm1 x Impeller Side Guard - 350mm1 x Helios VARW 500/4 - TK1 x Elta 10 Amp Electronic single phase speed controller.1 x 204x60mm Equal T Piece1 x 204x60mm Flat Channel Clip (Pack of 5)1 x 100mm Round Wall Plate1 x Elta SLC560/4B-1AC - IP551 x ASF 355-500 inlet flange DVS1 x Duct Termination with Mesh - 200mm1 x Elta SCP450-1EC - IP551 x EC6H - Reversible Group Fan Electronic Controller1 x CBM 15/11 6P C IP55 - Closed Motor - Single Phase1 x HCFT/4-450mm plastic impeller plate fan
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 ...