1-In. Automatic In-Line Sprinkler Valve American Standard It maintains a constant gas

It maintains a constant gas pressure and automatically changes from the empty tank to the full one

An economical model for the price conscious individual

Please accept our apologies Allows debris to be swept and removed that has collected in the chimney

For easy installation

Seals out drafts from bottom of door

1-In. Automatic In-Line Sprinkler Valve American Standard It maintains a constant gasUse In Line valves in locations where the use of a pressure vacuum breaker (PVB) or a double check valve is required by city codes to protect against back flow. Check your local city codes to determine what type of valves are required. In Line valves are installed below ground in a valve box down stream from the main line from a PVB or double check valve. In Line valves will not prevent back flow on their own: they need the help of a back flow