Therm-X-Span T-Series Expansion Tank, In-Line, 4.4 gal, 3/4 Inch Male NPT, 40 psi Precharge, 150 psi Working, 200 deg F, Butyl/EPDM Diaphragm, Stainless Steel, 11 Inch Dia x 15 Inch H
- The Amtrol T-12 thermal expansion tank accepts expanded water caused by thermal expansion
- When hot water is used, the Therm-X-Span thermal expansion tank returns water to the system
- Prevents dripping faucets, intermittent toilet fill and pressure relief valve discharge
- For use with water heaters up to 100 gal in size
- Prevents dangerous pressure buildup
- Required by most building codes where backflow preventers are specified
