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Amtrol THERM-X-TROL Expansion Tanks

Thermal expansion occurs as domestic water is heated. Left unchecked, the resulting pressure increase can cause relief valve discharge and other potentially unsafe conditions. Therm-X-Trol® expansion tanks absorb this expanded water, keeping water pressure at a safe level.

Amtrol ST-12 THERM-X-TROL Expansion Tank, 4.4 Gallon (141N43) Amtrol ST-12 Price: $99.70 $74.78 You Save: $24.92 (25%)	Amtrol ST-5 THERM-X-TROL Expansion Tank, 2 Gallon (140N43) Amtrol ST-5 Price: $74.40 $55.80 You Save: $18.60 (25%)	Amtrol T-12 THERM-X-SPAN Expansion Tank, 4.4 Gallon (141-363) Amtrol T-12 Price: $62.60 $46.95 You Save: $15.65 (25%)
Amtrol T-5 THERM-X-SPAN Expansion Tank, 2.0 Gallon (140-735) Amtrol T-5 Price: $49.30 $36.98 You Save: $12.32 (25%)	Amtrol ST-25V THERM-X-TROL Expansion Tank, 10.3 Gallon (143N164) Amtrol ST-25V Price: $248.20 $186.15 You Save: $62.05 (25%)	Amtrol ST-210V THERM-X-TROL Expansion Tank, 86 Gallon (150N32) Amtrol ST-210V Price: $877.00 $657.75 You Save: $219.25 (25%)
Amtrol ST-42V THERM-X-TROL Expansion Tank, 20 Gallon (144N177) Amtrol ST-42V Price: $361.30 $270.98 You Save: $90.32 (25%)	Amtrol ST-60V THERM-X-TROL Expansion Tank, 25.0 Gallon (147N130) Amtrol ST-60V Price: $466.70 $350.03 You Save: $116.67 (25%)	Amtrol ST-30V THERM-X-TROL Expansion Tank, 14 Gallon (143N273) Amtrol ST-30V Price: $304.40 $228.30 You Save: $76.10 (25%)
Amtrol ST-80V THERM-X-TROL Expansion Tank, 44 Gallon (147N131) Amtrol ST-80V Price: $640.60 $480.45 You Save: $160.15 (25%)	Amtrol ST-180V THERM-X-TROL Expansion Tank, 62 Gallon (148N118) Amtrol ST-180V Price: $771.00 $578.25 You Save: $192.75 (25%)