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Traps

Traps for under your kitchen sink, bathroom wash hand basin, shower and bath.

Because of its shape, a trap retains a small amount of water after the fixtures use. This water creates an air seal which helps stop smells making their way from the drain back into your house.

Bathroom wash hand basins use a 1-1/4 inch trap.
Kitchen sinks, baths and showers use a 1-1/2 inch trap.

** BSP thread sizes are measured a special way - have a look at our information page for more details **

Basin P Trap 1-1/4" 32mm
Basin P trap, 1-1/4 inch BSP threaded inlet connection, compression type 32mm (1-1/4 inch) pipe outlet connection - suits push fit or solvent waste pipe
£4.36
Basin P Trap 1-1/4" 32mm
Basin P trap, 1-1/4 inch BSP threaded inlet connection, compression type 32mm (1-1/4 inch) pipe outlet connection - suits push fit or solvent waste pipe
£4.36
Telescopic Adjustable Basin P Trap 1-1/4" 32mm
Bathroom wash hand basin P trap with telescopic adjustment for height, useful if you are having difficulty lining up your pipework with an existing hole in the wall. 1-1/4 inch BSP threaded inlet connection, compression type pipe outlet connection - suits 32mm (1-1/4 inch) push fit or…
£6.40
Telescopic Adjustable Basin P Trap 1-1/4" 32mm
Bathroom wash hand basin P trap with telescopic adjustment for height, useful if you are having difficulty lining up your pipework with an existing hole in the wall. 1-1/4 inch BSP threaded inlet connection, compression type pipe outlet connection - suits 32mm (1-1/4 inch) push fit or…
£6.40
Basin Pedestal Trap 1-1/4" 32mm
Pedestal trap 1-1/4 inch (bathroom wash hand basin size).
Especially suited for waste pipes that are directly under the basin.
£6.79
Basin Pedestal Trap 1-1/4" 32mm
Pedestal trap 1-1/4 inch (bathroom wash hand basin size).
Especially suited for waste pipes that are directly under the basin.
£6.79
Basin Bottle Trap 1-1/4" 32mm
Basin bottle trap, 1-1/4 inch BSP threaded inlet connection, compression type 32mm (1-1/4 inch) pipe outlet connection - suits push fit or solvent waste pipe
£6.78
Basin Bottle Trap 1-1/4" 32mm
Basin bottle trap, 1-1/4 inch BSP threaded inlet connection, compression type 32mm (1-1/4 inch) pipe outlet connection - suits push fit or solvent waste pipe
£6.78
Bowl & Half Kitchen Sink Plumbing Kit | McAlpine SK1
McAlpine SK1 bowl and a half kitchen sink plumbing kit with trap and connection for the discharge from a domestic appliance (comes with a blanking piece for the washing machine / dishwasher connection, in case it is not needed).
£14.47
Bowl & Half Kitchen Sink Plumbing Kit | McAlpine SK1
McAlpine SK1 bowl and a half kitchen sink plumbing kit with trap and connection for the discharge from a domestic appliance (comes with a blanking piece for the washing machine / dishwasher connection, in case it is not needed).
£14.47
Double Bowl Kitchen Sink Plumbing Kit | McAlpine SK2
McAlpine SK2 double bowl kitchen sink plumbing kit with trap and connection for the discharge from a domestic appliance (comes with a blanking piece for the appliance connection, in case it is not needed).
£16.48
Double Bowl Kitchen Sink Plumbing Kit | McAlpine SK2
McAlpine SK2 double bowl kitchen sink plumbing kit with trap and connection for the discharge from a domestic appliance (comes with a blanking piece for the appliance connection, in case it is not needed).
£16.48
Kitchen Sink P Trap With Washing Machine Waste Pipe Spigot Connection
Height adjustable, 1-1/2 inch kitchen sink p trap with spigot connection for washing machine or dishwasher waste / drain pipe.
£5.98
Kitchen Sink P Trap With Washing Machine Waste Pipe Spigot Connection
Height adjustable, 1-1/2 inch kitchen sink p trap with spigot connection for washing machine or dishwasher waste / drain pipe.
£5.98
Kitchen Sink P Trap With 2 Washing Machine Waste Pipe Spigot Connections
Height adjustable, 1-1/2 inch kitchen sink p trap with two spigot connections for dishwasher and washing machine waste / drain pipes.
£9.06
Kitchen Sink P Trap With 2 Washing Machine Waste Pipe Spigot…
Height adjustable, 1-1/2 inch kitchen sink p trap with two spigot connections for dishwasher and washing machine waste / drain pipes.
£9.06
Kitchen Sink P Trap 1-1/2" 40mm
Kitchen sink P trap, 1-1/2 inch BSP threaded inlet connection, compression type 40mm (1-1/2 inch) pipe outlet connection - suits push fit or solvent waste pipe
£5.14
Kitchen Sink P Trap 1-1/2" 40mm
Kitchen sink P trap, 1-1/2 inch BSP threaded inlet connection, compression type 40mm (1-1/2 inch) pipe outlet connection - suits push fit or solvent waste pipe
£5.14
Telescopic Adjustable Kitchen Sink P Trap 1-1/2" 40mm
P trap with telescopic height adjustment, very useful if you are having difficulty with the height of your outlet pipe. 1-1/2 inch BSP threaded inlet connection (the standard size for a kitchen sink), compression type 40mm (1-1/2 inch) pipe outlet connection - suits push fit or solvent…
£6.58
Telescopic Adjustable Kitchen Sink P Trap 1-1/2" 40mm
P trap with telescopic height adjustment, very useful if you are having difficulty with the height of your outlet pipe. 1-1/2 inch BSP threaded inlet connection (the standard size for a kitchen sink), compression type 40mm (1-1/2 inch) pipe outlet connection - suits push fit or solvent…
£6.58
Kitchen Sink Bottle Trap 1-1/2" 40mm
Kitchen sink bottle trap, 1-1/2 inch BSP threaded inlet connection, compression type pipe outlet connection - suits 40mm (1-1/2 inch) push fit or solvent waste pipe. 1-1/2 inch BSP threaded inlet connection, compression type pipe outlet connection - suits 40mm (1-1/2 inch) push fit or…
£4.53
Kitchen Sink Bottle Trap 1-1/2" 40mm
Kitchen sink bottle trap, 1-1/2 inch BSP threaded inlet connection, compression type pipe outlet connection - suits 40mm (1-1/2 inch) push fit or solvent waste pipe. 1-1/2 inch BSP threaded inlet connection, compression type pipe outlet connection - suits 40mm (1-1/2 inch) push fit or…
£4.53
Bath / Bidet Trap 1-1/4" 32mm (Special Small Size)
Shallow 1-1/4 inch trap, suits bidets and some old cast iron baths (modern baths are normally 1-1/2 inch).
1-1/4 inch BSP threaded inlet connection, compression type pipe outlet connection - suits 32mm (1-1/4 inch) push-fit or solvent waste pipe.
£5.76
Bath / Bidet Trap 1-1/4" 32mm (Special Small Size)
Shallow 1-1/4 inch trap, suits bidets and some old cast iron baths (modern baths are normally 1-1/2 inch).
1-1/4 inch BSP threaded inlet connection, compression type pipe outlet connection - suits 32mm (1-1/4 inch) push-fit or solvent waste pipe.
£5.76
Bath Trap 1-1/2" 40mm
Shallow bath trap with 1-1/2 inch BSP threaded inlet connection, compression type pipe outlet connection - suits 40mm (1-1/2 inch) push fit or solvent waste pipe.
£3.99
Bath Trap 1-1/2" 40mm
Shallow bath trap with 1-1/2 inch BSP threaded inlet connection, compression type pipe outlet connection - suits 40mm (1-1/2 inch) push fit or solvent waste pipe.
£3.99
Washing Machine Waste Standpipe & Trap 1-1/2" 40mm
Washing machine standpipe and trap (universal trap outlet suitable for 40mm / 1-1/2 inch plastic waste pipe).
This is available for UK customers only - it is too big for airmail.
£6.56
Washing Machine Waste Standpipe & Trap 1-1/2" 40mm
Washing machine standpipe and trap (universal trap outlet suitable for 40mm / 1-1/2 inch plastic waste pipe).
This is available for UK customers only - it is too big for airmail.
£6.56
Washing Machine Waste Pipe Twin Connector | McAlpine V33WM
McAlpine V33WM standpipe twin connector connects the waste pipe hoses from two appliances (dishwasher and washing machine) into a single 40mm (1-1/2 inch) vertical waste standpipe.
Often called a Viking's hat due to its appearance.
£9.12
Washing Machine Waste Pipe Twin Connector | McAlpine V33WM
McAlpine V33WM standpipe twin connector connects the waste pipe hoses from two appliances (dishwasher and washing machine) into a single 40mm (1-1/2 inch) vertical waste standpipe.
Often called a Viking's hat due to its appearance.
£9.12
40mm (1-1/2") In-Line Non Return Valve
McAlpine T28M-NRV 42mm (1-1/2 inch) multifit in-line non-return valve with top access for cleaning.
Prevents back flow of water.
1-1/2 inch universal connections, suits push-fit or solvent weld waste pipe.
Top access for easy cleaning.
£12.27
40mm (1-1/2") In-Line Non Return Valve
McAlpine T28M-NRV 42mm (1-1/2 inch) multifit in-line non-return valve with top access for cleaning.
Prevents back flow of water.
1-1/2 inch universal connections, suits push-fit or solvent weld waste pipe.
Top access for easy cleaning.
£12.27
1-1/4" BSP Male x Female Coupling 2" Long | McAlpine S12A-2
Extend your wash hand basin waste by 2 inches with this McAlpine Male x Female coupling.
1-1/4 inch BSP thread - standard bathroom wash hand basin waste size.
£2.56
1-1/4" BSP Male x Female Coupling 2" Long | McAlpine S12A-2
Extend your wash hand basin waste by 2 inches with this McAlpine Male x Female coupling.
1-1/4 inch BSP thread - standard bathroom wash hand basin waste size.
£2.56
1-1/4" BSP Male x Female Coupling 3" Long | McAlpine S12A-3
Extend your wash hand basin waste by 3 inches with this McAlpine Male x Female coupling.
1-1/4 inch BSP thread (standard bathroom wash hand basin waste size.
£2.56
1-1/4" BSP Male x Female Coupling 3" Long | McAlpine S12A-3
Extend your wash hand basin waste by 3 inches with this McAlpine Male x Female coupling.
1-1/4 inch BSP thread (standard bathroom wash hand basin waste size.
£2.56
1-1/2" BSP Male x Female Coupling 2" Long | McAlpine T12A-2
Extend your kitchen sink waste by 2 inches with this McAlpine Male x Female coupling.
1-1/2 inch BSP thread - standard kitchen sink waste size.
£2.56
1-1/2" BSP Male x Female Coupling 2" Long | McAlpine T12A-2
Extend your kitchen sink waste by 2 inches with this McAlpine Male x Female coupling.
1-1/2 inch BSP thread - standard kitchen sink waste size.
£2.56
1-1/2" BSP Male x Female Coupling 3" Long | McAlpine T12A-3
Extend your kitchen sink waste by 3 inches with this McAlpine Male x Female coupling.
1-1/2 inch BSP thread - standard kitchen sink waste size.
£2.56
1-1/2" BSP Male x Female Coupling 3" Long | McAlpine T12A-3
Extend your kitchen sink waste by 3 inches with this McAlpine Male x Female coupling.
1-1/2 inch BSP thread - standard kitchen sink waste size.
£2.56
1-1/4" Trap Inlet Washer
1-1/4 inch trap inlet washer. Square profile. This washer makes the seal between the trap and waste fitting on your bathroom wash hand basin. It is called a 1-1/4 inch washer, because it suits a waste trap with a 1-1/4 inch BSP thread, not because the washer itself measures 1-1/4 inch.
£0.69
1-1/4" Trap Inlet Washer
1-1/4 inch trap inlet washer. Square profile. This washer makes the seal between the trap and waste fitting on your bathroom wash hand basin. It is called a 1-1/4 inch washer, because it suits a waste trap with a 1-1/4 inch BSP thread, not because the washer itself measures 1-1/4 inch.
£0.69
1-1/4" Trap Outlet Washer
Outlet washer for 1-1/4 inch bathroom basin trap, with cone / taper profile.
£0.79
1-1/4" Trap Outlet Washer
Outlet washer for 1-1/4 inch bathroom basin trap, with cone / taper profile.
£0.79
1-1/2" Trap Inlet Washer Flat
Flat 1-1/2 inch trap inlet washer.
This washer makes the seal between the trap and waste fitting on your bath or sink.
£0.91
1-1/2" Trap Inlet Washer Flat
Flat 1-1/2 inch trap inlet washer.
This washer makes the seal between the trap and waste fitting on your bath or sink.
£0.91
1-1/2" Trap Inlet Washer Square Section
1-1/2 inch trap inlet washer. Square profile. This washer makes the seal between the trap and waste fitting on your bath or sink. It's called a 1-1/2 inch washer, because it suits a waste trap with a 1-1/2 inch BSP thread, not because the washer itself measures 1-1/2 inch.
£0.69
1-1/2" Trap Inlet Washer Square Section
1-1/2 inch trap inlet washer. Square profile. This washer makes the seal between the trap and waste fitting on your bath or sink. It's called a 1-1/2 inch washer, because it suits a waste trap with a 1-1/2 inch BSP thread, not because the washer itself measures 1-1/2 inch.
£0.69
1-1/2" Trap Outlet Washer
1-1/2 inch trap outlet washer. Coned / tapered profile.
£0.91
1-1/2" Trap Outlet Washer
1-1/2 inch trap outlet washer. Coned / tapered profile.
£0.91