ST-42V | Expansion Tank Therm-X-Trol Thermal 20 Gallon 150PSIG 3/4" NPTF ST-42V Non-ASME for Closed Potable Water Systems to Control Pressure Build-up | Amtrol Type_Ball Lock Tooling Columns Metric making it ideal for applications

making it ideal for applications requiring frequent repositioning or adjustments

optimizing the efficiency of your water heater

Its 1/2 X 4

preventing accidental disengagement

ST-42V | Expansion Tank Therm-X-Trol Thermal 20 Gallon 150PSIG 3/4" NPTF ST-42V Non-ASME for Closed Potable Water Systems to Control Pressure Build-up | Amtrol Type_Ball Lock Tooling Columns Metric making it ideal for applicationsAmtrol Expansion Tank ST 42V: Thermal Protection for Closed Potable Water Systems The Amtrol ST 42V Thermal Expansion Tank is a critical component for closed potable water systems, designed to manage pressure fluctuations and safeguard water heaters. Engineered for non ASME systems, this 20 gallon tank features a durable steel construction with a multi dome design for enhanced strength. Key Features: * **Antimicrobial Liner:** Neutralizes bacteria on