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Your cart is empty.A continuous pressure type with intermediate vent. Particularly recommended for boiler feed lines to prevent backflow should supply pressure fall below system pressure. Primary check valve features rubber-to-rubber seating for tight closure. Leakage is vented to atmosphere should the downstream check foul. Brass body with stainless steel and durable rubber working parts. Female union connections. Maximum temp. 225°F. No. 9D Female union inlet and outlet connections.
James J. Antosh
2025-09-04 10:09:18
Good quality. Worked well. Would buy again.
Brently
2025-08-04 11:00:48
Works good but if it's like the last one will last about 5 years till it leaks. Way overpriced for what it is
Christopher L Collins
2025-07-22 12:08:10
Exactly as advertised, delivered 2 days early
D P K
2025-07-06 12:14:47
I installed one many (7+) years ago as required for a community well system, which is a good thing. Recently water flow caused it to give off a whining sound. It still back-checked but I replaced it since I had originally brought two to have a spare. Am happy to see it still available and am buying another to keep a back up since check valves don't normally last this long in a hard water environment. The soft seat material was still pliable and valve appears in good functional condition. If a new spare was not available I would take the old valve further apart to clean it for re-installation. Good product I hope it stays around for a while.
Paul Haubrich
2025-07-03 15:03:39
The preventer was delivered ahead of schedule and was same good quality as the 35 year old device it replaced.
Customer
2025-05-29 14:10:35
Exactly what I wanted at a fair price and fast shipping
Springbok
2025-05-19 16:34:33
Installation was easy with the union and it worked form the start without issues. Nice to have my 124 PSI water pressure reduced to 45 PSI.
Engineer85
2025-04-18 16:31:44
This unit appears to be working very well. At first it seems to have a very slow drip leak, but that stopped. It was a little difficult to tighten for a rookie plumber, but it is doing the job nicely. I would buy it again and use Teflon Tape as I did in my installation.
Mark D.
2025-02-28 15:35:09
Excellent Thanks.
George Brown
2025-02-10 12:11:01
This replacement Watts backflow preventer is equally as good as the one it replaced.
Client d'
2025-01-05 18:18:09
the piece sinks at day 1
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