Description
Watts LFF116 300 B 20 200 LS 3 Part of the LFF116 Series ZA100F 6NH ZB415 SZ1 4IG ZB415 SZ1 4IG This 2 inch lead free anti siphon vacuum breaker backflow preventer for hot or cold water prevents the reverse flow of polluted water from entering into the potable water supply due to backsiphonage