• Expansion Tanks are designed to absorb hot water expansion in closed heating systems.

• Expansion Tank: TK300-30, Pre-pressurized at 12 PSI, ½ Connection

• Air Purger: AP401 1-1/4” NPT Connections w/ ½” expansion tank & 1/8” air vent connections

• Air Vent: FV180 1/8 connection

• Fill Valve w/ Backflow Preventer: FM911, ½” NPT connection

• Service Check Valves: SCV0125, SCV050