Watts Model 800M4 / 800M4FR PVB

800M4QTThe Watts 800M4 is a pressure vacuum breaker ( PVB ).  It is available in ½” – 2” sizes and has been in production since 1994.  The body is made of bronze.  The 800M4FR was introduced in 1995 and is produced with a float assembly that contains a relief valve that protects the unit against freeze damage.  A lead free version was introduced in 2010 (LF800M4)

Parts Breakdown

PDF    Series 800M4 / LF800M4 (FR) Parts Breakdown


Repair Procedures

PDF  Series 800M4 / LF800M4 (FR) Repair Procedures

Repair Videos

800M4 Repair Video

Repair Guy Article

Not Currently Available

Spec Sheet


Category: Watts
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