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4.4 Gallon Water Heater Safety Tank

Model Number: G12L  |  Menards® SKU: 6913379

Online Price
$49.98

  • Description 

Thermal / hot water heater expansion tanks prevent hot water from back flowing into a cold water line or from escaping through the pressure relief valve and onto the floor. They prevent constant fluctuations in water pressure that damage the heater and associated piping. National plumbing code mandates installation when a backflow preventer is present. The G12 is to be used with 100 gallon or less hot water heaters. The system connection is 3/4" NPTF - stainless steel. Its max working pressure is 150 psi and it's precharged from the factory at 40 psi. The max operating temp is 200°F. No saddle valve is included (5 year warranty).

  • Does not include saddle valve
  • Made in the USA
  • Protects water heater, appliances and fixtures
  • Prevents dangerous pressure buildup
  • Rigid poly liner
  • Butyl diaphragm for long life
  • Welded steel construction
  • Sizing -up to a 100 gallon water heater
  • System connection- 3/4" NPTF; stainless steel
  • Max operating temp:200°F max work pressure: 150 PSI
  • Factory pre-charge: 40ps

Dimensions: 11"D X 15"H; Color May Vary
Shipping Dimensions: 16.25 x 11.25 x 11.25
Shipping Weight: 9.0 lbs

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Online Availability

Available for immediate shipment.





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Please Note: Prices, promotions, styles and availability may vary by store and online. While we do our best to provide accurate item availability information, we cannot guarantee in-stock status and availability as item quantities are constantly changing throughout the day. Inventory last updated 7/23/2014 at 5:00am CT. Online orders and products purchased in-store qualify for rebate redemption. Rebates are provided in the form of a merchandise credit check which can only be used in a Menards store.