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Neo-Pure Thermal Expansion Tank 2.1 gal 3/4 MNPT OPEN BOX

Neo-Pure Thermal Expansion Tank 2.1 gal 3/4 MNPT OPEN BOX

SKU:TET-021-OB

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Consumer Note:  All Tanks were set to Factory standard pressure for testing. Through the conducted test, no pressure was lost and no leaks were detected. This tank maintains full functionality with only exterior blemishes. This is a deal you cannot pass up! This item is selling As Is, no returns will be accepted.

The neoPure Thermal Expansion Tanks are designed for residential water heaters and hot water storage systems to absorb excess water volume created during thermal expansion. By helping maintain stable system pressure, these tanks reduce stress on plumbing components and protect against damaging pressure spikes. Featuring a durable internal diaphragm that separates air and water, they provide reliable, long-lasting performance while helping extend the life of your water heater, fixtures, and appliances.

Features:

  • Absorbs excess pressure caused by thermal expansion
  • Helps protect water heaters and plumbing fixtures from premature wear
  • Prevents pressure buildup within closed water systems
  • Durable internal diaphragm separates air and water
  • Supports consistent water pressure and system longevity


Maximum Water Temperature
Water Heater Size/Volume 130º F 140º F 160º F 180º F
30 GALLONS TET-021 TET-021 TET-021 TET-021
40 GALLONS TET-021 TET-021 TET-021 TET-021
50 GALLONS TET-021 TET-021 TET-021 TET-048
60 GALLONS TET-021 TET-021 TET-021 TET-048
80 GALLONS TET-021 TET-048 TET-048 TET-048
100 GALLONS TET-048 TET-048 TET-048 TET-090
120 GALLONS TET-048 TET-048 TET-048 TET-090
150 GALLONS TET-048 TET-048 TET-090 TET-090
175 GALLONS TET-048 TET-090 TET-090 TET-090

Sizing based on water heater recovery from 40F, water supply pressure of 60 PSIG, and relief valve set at 150 PSIG. Adjust tank precharge to equal incoming water pressure.

Diagram showing a water heater, boiler, and a thermal expansion tank (TET-021) installed to prevent unsafe pressures and dripping relief valves
Close ups of the bottom and top of the thermal expansion tank next to a water heater. The tank prevents pressure build up
Diagram showing how water enters a water heater and where the thermal expansion tank is in the process

Documents

Neo-Pure Thermal Expansion Tank 2.1 gal  3/4 MNPT OPEN BOX Manual

Shipping Information

Shipping costs are based on your order’s weight, location, and selected shipping option. We strive to ship orders quickly, with expedited orders (Next Day Air or 2 Day) going out the same business day if placed before 4:30PM EST.

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