WATTS 800M4 1/2-3/4" VENT KIT

1/2 Through 3/4 In Pressure Vacuum Breaker Vent Kit, 800M4, Ames A200
This is an original manufacturer repair product used within various divisions of the Watts Water Technology Company (Ames, Febco, Watts)

Model Overview

This is a pressure vacuum breaker. Production began in 1994. This is a bronze bodied unit. In 2010 a LF800M4 model was introduced which was constructed of lead free bronze. The check spring is contained when the bonnet is removed. The check seat is replaceable. A seat removal tool is needed to change the seat. The test cocks for this model are located on the ball valves and not on the assembly body. The 800M4 is a redesign of the 800M2 and 800M3 series with the only difference being the incorporation of a replaceable check seat. In 1995 the 800 M4 FR model was introduced. This model contains a small relief valve built into the air inlet float to prevent damage if the assembly froze.