Valterra 4" Gate Valve for Waste and Pressure Pipes – Stainless Steel – Fits 110mm-114.3mm Pipes – Includes 2 x Pressure to Waste Bush's, Ideal for Pond, Waste, and Water System Control

The product is what it is, a quality valve. The best thing though was the service I had. Initially I purchase the wrong size valve, which after arrival it was plain to see. I contacted the seller and without hesitation instructed to return the valve and they would replace it for different size. Within a week I had the correct size delivered. Thanks for good service 👍

Quality good and easy to fit good price stops water from syphon back to the pump

Problem with these components is you only know they don't work when you need them. Fitted between my upper reed bed filter bed and the lower main koi pond. Shut it down for some maintenance last week and the entire upper pond just emptied (against the non-return valve) into the lower pond. Rubbish.

Great stuff

Blocks, sticks, doesn't work.