Description

Cal-Pro Hydronic Expansion Tanks are factory leak-tested to ensure tank integrity. They feature certified synthetic Sir rubber diaphragms designed for maximum drawdown. MIG welding eliminates interior rough spots and rough edges. A welded side outlet allows easy and quick installation. Low profile tank design with full membrane depth eliminates stretching of the diaphragm, providing an increased life cycle. Eternal baked-on epoxy polyester coating provides a durable, appliance-like finish. Protected pre-charge valves eliminate potential leak paths. 5 year warranty on all models.
Factory leak-tested to ensure tank integrity
Certified synthetic SBR rubber diaphragm, all diaphragms are designed to maximize drawdown
Capacity: 21.1 Gallon
Diameter: 17.7″; Height: 23.9″
Acceptance Volume: 15.3 Gallons; Connection: 3/4″ NPT