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H2O WHR300 Whole House Replacement Tank for NSA 300H

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The WHR300 whole house filter replaces NSA 300H tanks. This tank is exactly the same size as NSA 300H, so it is a perfect fit. The tank head has a larger O-ring for a better seal than the NSA 300H. You may also consider upgrading to our large WHR935 tank.

Utilizing Granular Activated Carbon, this unit will filter all the water throughout your entire home. This system will remove chlorine, bad taste and odor from all of your family's water.

Use the WHR300 for all kitchen water needs (including drinking water, ice, juice concentrates, coffee, tea, cooking), pets and showering and bathing in clean, chlorine free water.


  • Structural Poly Glass™ Tank
  • Warranted for 1 year of maintenance free performance (pro-rata) with proper sediment prefiltration
  • 75,000 gallon capacity for chlorine removal
  • Made in the U.S.A.
  • Intended for use on municipally treated water
  • Do not use on microbiologically unsafe water supplies