Eastman Thermal Expansion Tank Size:4.5 Gal (60023) Only the most advanced driveline

Only the most advanced driveline gear oils meet the difficult challenges of effectively balancing performance

Provides excellent durability

Green lawns and blooming flower beds require the right amount of water

7 m²) 121 ft² (11

Eastman Thermal Expansion Tank Size:4.5 Gal (60023) Only the most advanced drivelineThe Eastman thermal expansion tank is designed to prevent dangerous build ups of pressure in your water heater tank. These thermal expansion tanks are available in 2 and 4. 5 gallon sizes. The Eastman thermal expansion tank stops hot water from backflowing into the cold water line while preventing hot water from escaping through the pressure relief valve and onto the floor, addressing the constant fluctuations in water pressure that can be dangerous