H2O WHR300 Whole House Filtration System Replacement Tank for NSA 300H with 3/4″ Ports (6″ x 35″)


  • Catalytic Carbon Media
  • Replacement Tank for NSA 300H & NSA 300HR
  • Removes Chlorine, Taste, Odor & Sediment
  • Removes Chloramines and Hydrogen Sulfide
  • Reduces Chemical Contaminants
  • Same Height & Diameter as NSA Tank
  • 75,000 Gallon Capacity
  • 12-Month Pro-Rata Warranty

  6″ × 35″ Structural PolyGlass Replacement Tank

The WHR300 whole house filtration system replacement tank is for 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.

The WHR935 Tank is the same height as NSA 300H, but has 3″ larger diameter. It has twice as much carbon media as NSA 300H. It also has twice the capacity and flow rate.

Utilizing Catalytic Carbon, this unit will filter all the water throughout your entire home. This system will remove chlorine, chloramines, 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.

H2O WHR300 Whole House Filtration System Replacement Tank for NSA 300H Features:

  • Structural Polyglass 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

Additional information

Weight 24 lbs
Amount of Media

0.6 cu. ft.

Media Type

Media Bed Life

3 Years (Most Residential Applications)


Material Composition

Port Size

Tank Size

Country of Origin

Parts / Accessories