H2O WHR935 Whole House Filtration System Replacement Tank Upgrade for NSA 300H with 3/4″ Ports (9″ x 35″)


  • Catalytic Carbon Media
  • Removes Chlorine, Taste, Odor & Sediment
  • Removes Chloramines and Hydrogen Sulfide
  • Reduces Chemical Contaminants
  • Upgrade Tank for NSA 300H & NSA 300HR
  • Same Height as NSA Tank
  • Increased Flow Rate & Longer Life
  • 3″ Larger Diameter

  9″ × 35″ Structural PolyGlass Replacement Tank

The WHR935 whole house filtration system replacement tank upgrades the NSA 300H tank. This tank is exactly the same height as NSA 300H, but it is 3″ larger in diameter so it fits in most installations with ease. Our tank head has a larger O-ring for a better seal than the NSA 300H.

The WHR935 has twice the amount of catalytic carbon as NSA 300H size tanks and lasts twice as long. WHR935 also filters the water better due to the media bed size being larger, resulting in longer contact time with the water. This filter will provide better flow and pressure than NSA 300 size tanks. There is less maintenance because the larger tank lasts twice as long between replacements giving you a better value.

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 WHR935 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 WHR935 Whole House Filtration System Replacement Tank for NSA 300H Features:

  • Structural Polyglass Tank
  • Warranted for 2 years of maintenance-free performance (pro-rata) with proper sediment pre-filtration
  • 150,000 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 45 lbs
Amount of Media

1.0 cu. ft.

Media Type

Media Bed Life

3 Years (Most Residential Applications)


Material Composition

Port Size

Tank Size

Country of Origin

Parts / Accessories