Water Worker 2 Gallon Thermal Expansion Water Heater Safety Tank. This durable tank features a steel outer shell, polypropylene lined water reservoir, and heavy duty butyl diaphragm that flexes to accommodate expanded water overflow, reducing pressure build up and harmful pressure spikes in closed water systems. The leak proof precharged air chamber ensures long-lasting performance. UL listed.
WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov