Washing Machine Valve Straight with Non Return Valve - 07200131
Plumbing Out Kit - VPS Plumbing Supplies
Xavax Drain Hose Set (7-piece set consisting of 1.5 m drain hose, siphon connection, hose clamps, non-return valve, suitable for condenser dryers) : Amazon.co.uk: Large Appliances
Mcalpine Non Return Valve T28M-NRV For 40mm 1-1/2" Waste - for sale online | eBay
Viva Magna Self-Sealing Waste Valve 32mm | Toolstation
HOW NON RETURN VALVES WORK - Plumbing Tips - YouTube
JTM Brass Valves Spring Check Non Return Valve with Metal Shutter PN16 - Pipe & Fittings from JTM Plumbing UK
Washing machine waste smelling or blocked. Water coming up in the sink. - YouTube
Washing machine (right) and dishwasher (left) wastes connect to kitchen sink trap. It often smells when the washing machine is running, any ideas as to how I can stop that from happening? :
3/4" Overflow Waste Non Return Valve for Washing Machine