Plastic Anti-Siphon Valve for Vented Loop

[Dick Locke]

Hi,

I'm looking for the source of plastic anti siphon valves that go onto an existing vented loop....not the loop itself which is perfectly fine.

These are cheap looking plastic, about 1-1/2 inches high on have roughly 1/2 female npt threads. There were a bunch on the boat when I bought it but I've run out.

I can post a picture if that will help anyone.

Can anyone help?

Thanks

Dick Locke
s/v Tanoshii

[Nimble1]

I have purchased them at West marine but any marine store should carry them. I am guessing that you are talking about the one with the rubber valve in them.

[Daniel du Toit]

Forespar and Whale have a good product (go for Forespar)

[kbc903]

Did you find this valve? I am looking for one as well.

[Dick Locke]

Not the one I was initially looking for but the Forespar rubber duckbill valve worked perfectly. WM number 594127, Forespar number 903002