Watts 800M4 PVB

$75.00 (Excl. VAT)
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Category Valve Boxes

Watts Series 800M4QT Anti-Siphon Pressure Vacuum Breakers 3/4" (0388001)

Series 800M4QT Anti-Siphon Pressure Vacuum Breakers prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage. It consists of bronze body construction, silicone rubber check valve disc, plastic check valve seat, stainless steel springs, a bonnet with silicone rubber O-ring seal, a lightweight plastic disc float, tee handle or lever handle shutoffs, and test cocks for winterization draining. Series 800M4QT is ideal in health hazard continuous pressure applications such as irrigation systems and industrial process water systems where the water enters the equipment at or below its flood rim. Maximum Pressure:150psi (10.3 bar), Minimum Pressure: 15psi (55kPa)


  • 1/2 to 2 in. (15 to 50mm)
  • Replaceable plastic seat
  • Easy maintenance of internal parts
  • Acetal bonnet acts as "freeze plug" to prevent body damage
  • O-ring bonnet seal for less possibility of fouling
  • Silicone seat disc for durability
  • Test cocks positioned for easy testing and winterization
  • Compact space saving design
  • Standardly equipped with tee handle quarter turn ball valve shutoffs 1.2" . 1" (15 . 25mm). The 11.4" . 2" (32 . 50mm) feature lever handles
  • No special tools required for servicing
  • Bronze body for durability

* Not AB1953 CA/VT Compliant

Custom Touch Lawn & Landscape provides quality Lawn Care, Landscaping, Irrigation Systems, Sprinklers & Lawn Maintenance throughout Wichita, Kansas. When it comes to Wichita Lawn Care, Custom Touch is one of the most trusted Lawn & Landscaping companies in town. Custom Touch Lawn & Landscape Serving the Greater Wichita Area.