Could this be used for a washing machine trap?

No, this is 11/4” size for basin. For kitchen trap you need WV-1 . Which is 11/2” size. Thanks

Is one and a quarter 32mm

Fits one and a quarter basin waste threaded outlet and I have connected to 32mm waste pipe, hope that answers the question. Works great by the way.

Can I use this to connect to a 40mm pipe? Thank you

NO, this one connects to 32mm pipe, (for bathroom/cloakroom sinks) you need:- McAlpine 1-1/2" Bath Space Saver Bath Waste Trap Self Closing Valve WV-1 This one which fits 40mm pipe (as it says in its description

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McAlpine 1-1/4" Self Closing Space Saver Basin Waste Trap WHB-1 | Compact Anti-Odour Trap for Cloakrooms & Basins | Horizontal Outlet | Hygienic, Durable Design

McAlpine 1-1/4" Self Closing Space Saver Basin Waste Trap WHB-1 | Compact Anti-Odour Trap for Cloakrooms & Basins | Horizontal Outlet | Hygienic, Durable Design

Product ID: 140265341

📏62mm ultra-compact height

🔄Self-closing waste valve

🧼Hygienic, easy-clean design

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Description

🚿 Compact power, zero odour—trap the freshness in style!

DURABLE HYGIENIC - Robust polypropylene build resists wear and keeps your basin fresh
FLEXIBLE PLUMBING FIT - Side inlet for 19/23mm condensate drains adapts to diverse setups
LEAK PROOF INNOVATION - Self-closing valve with internal membrane ensures zero odour escape
HASSLE FREE MAINTENANCE - Clean easily without disassembly—save time and avoid plumbing headaches
SPACE SMART ENGINEERING - Ultra-compact 62mm height fits tight cloakroom spaces effortlessly

The McAlpine WHB-1 is a compact 1-1/4" basin waste trap designed for cloakrooms and basins with a horizontal outlet. Featuring a self-closing valve and an internal membrane that opens only under water pressure, it prevents odours effectively. Its 62mm height and side inlet connection for 19/23mm condensate drains offer flexible installation options. Made from durable polypropylene, it’s hygienic and easy to clean without disassembly, making it a smart, space-saving plumbing solution.

Specifications

ASIN	B07N12KLRV
Batteries Required?	No
Batteries included?	No
Best Sellers Rank	83,328 in DIY & Tools ( See Top 100 in DIY & Tools ) 299 in Traps
Colour	White
Customer Reviews	4.5 4.5 out of 5 stars (348)
Date First Available	22 Jan. 2019
Item Package Quantity	1
Item Weight	110 g
Item model number	WHB-1
Manufacturer	McAlpine
Part Number	WHB-1
Product Dimensions	5.8 x 13.8 x 13.8 cm; 110 g
Size	1 & 1/4"

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