Backflow Preventers

Caleffi 573002A AutoFill Combo 1/2 inch Female Automatic Water Boiler Feed with Backflow Preventer

Fittings

1-1/2 X 3/4 Inch Schedule 40 PVC Bushing

3/4 Inch Schedule 40 PVC 90 Degree Elbow

1/2 Inch Black Malleable Iron Plug

Viega 77717 ProPress 3/4 inch Press Copper Cap with EPDM Sealing Element

Viega 78172 ProPress 1/2 inch Press Copper Slip Coupling with EPDM Sealing Elements

Parts

Weil McLain 383-700-165 Boiler Maintenance Kit

Weil McLain 383-500-095 30 PSIG Relief Valve

Red and White 3405 3/4 inch 150 PSI Relief Valve

Relief Valves

Watts 374A 0358553 3/4 inch Female x 3/4 inch Female 30 PSI Iron Body Pressure Relief Valve

Apollo 10-407-05 Bronze 3/4 inch Male Inlet x 3/4 inch Female Outlet 30 PSIG Pressure Relief Valve

Watts 335-M2 0342691 3/4 inch Female x 3/4 inch Female 30 PSI Bronze Body Pressure Relief Valve

Watts M335-M2 0342692 3/4 inch Male Inlet x 3/4 inch Female Outlet 30 PSI Bronze Body Pressure Relief Valve