This dual check backflow preventer with intermediate atmospheric vent is designed to protect drinking water systems from the return, caused by backsiphonage or backpressure, of contaminated fluids.
1/2" Union Dual check backflow preventer with atmospheric vent
is backordered and will ship as soon as it is back in stock.
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Warranty
This product is covered by a 1 year limited warranty
Delivery and Shipping
Orders are shipped within 2 business days. If a problem prevents us from shipping your order within this time, we will notify you.
Depending on your delivery location, transit time will vary from 1 day to 5 days
Note for US and Internationnal buyers: the customer is responsible for paying any import costs to the shipping carrier, such as duties, import taxes, or brokerage/disbursement fees which may apply upon delivery.
1/2" Union Dual check backflow preventer with atmospheric vent
1/2" Union Dual check backflow preventer with atmospheric vent
This dual check backflow preventer with intermediate atmospheric vent is designed to protect drinking water systems from the return,
caused by backsiphonage or backpressure, of contaminated fluids.
The Caleffi 573 series FlowShield™ DuC-AV is certified by ICC-ES to be in compliance with the International Plumbing Code (IPC), International Residential Code (IRC), Uniform Plumbing Code (UPC), and standards ASSE 1012-2021, and CSA B64.3-94. Additionally, it is also complies with NSF/ANSI/CAN 372, low lead, as certified
by ICC-ES, Drinking Water System Components – Lead Content Reduction of Lead in Drinking Water Act, California Health and Safety
Code 116875 S.3874, Reduction of Lead in Drinking Water Act.
1/2" Union Dual check backflow preventer with atmospheric vent
$113.68 CAD
Unit price /
Unavailable
This dual check backflow preventer with intermediate atmospheric vent is designed to protect drinking water systems from the return, caused by backsiphonage or backpressure, of contaminated fluids.
I purchased this glycol pump as part of the build your own, which included the manifolds pump, expansion tank, air separator and basic plumbing supplies. I was very happy with how everything arrived together and the install was straightforward just from looking at the pictures. The glycol pump makes it easy to charge the system, and took a lot of the guesswork out of setting it up. My garage now has toasty warm floors.
This is the second unit I’ve installed as the first one, installed two winters ago in another building is working so well. No problems, easy to install. Both systems are hydronic floor heat and these units work great. Just fyi…….going to electric now works out cheaper than the original propane costs. Like that it’s Canadian made.
