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Amtrol Designed and patented the first extrol diaphragm expansion tank in 1954 to control system pressure and help reduce energy consumption in heating and chilled water systems. Over six decades later extrol is still the worlds leading expansion tank brand setting the standard for quality reliability and innovation. Model # SX-30V Features: Automatic air vent eliminates system air Air purger separates air from water Water-tight reservoir for expanded water Item Dimensions: 15″ L x 15″ W x 48″ H.
- Automatic air vent eliminates system air
- Air purger separates air from water
- Water-tight reservoir for expanded water