Watts 0067370 Expansion Tank providing reliable proof-of-air for the

providing reliable proof-of-air for the combustion process without the common failures often seen in universal aftermarket alternatives

Proper orifice sizing is vital for safe operation

this model is configured with a BCR-18 orifice for Natural Gas

Integrated Harness: Pre-terminated with the correct Molex-style plug for rapid field installation

Constructed from advanced non-asbestos sheet material

Watts 0067370 Expansion Tank providing reliable proof-of-air for theThe Watts 0067370 PLT 5 Expansion Tank is a professional grade solution engineered for potable water systems to manage thermal expansion. When water is heated in a closed system, it expands; this 2. 1 gallon tank utilizes a rugged flexible butyl diaphragm and an FDA approved polypropylene liner to absorb that excess volume. By stabilizing internal pressure, it prevents the frequent tripping of the T&P relief valve, protecting the integrity of