SoftPro RO Replacement Membrane - High Efficiency (50 GPD)

High Efficiency - Healthy, Clean Water

Pentair GRO Reverse Osmosis Membrane

Most standard reverse osmosis systems work off of a 3:1 ratio principle, for every 1 gallon of item water you will have up 3 gallons going to the drain.

With this 1:1 membrane, you conserve as much as 75% on water, utilizing 75% less water waste drainage.


75 Gallons Per Day

Get clean, safe tasty water all day. 

300X Better Efficiency

300 times more efficient than those typical 3:1 filters.

Thin Layer Composite (TLC)

Industry leading Thin Layer Composite membrane. TLC thin layer composite membrane 100% dry membrane maximizing shelf


Encapsulated membrane maximizes the life cycle of the cartridge to up to 2-5 years.

High Efficiency - Healthy, Clean Water

entair's GRO TLC Residential Membrane

Pentair's GRO TLC Residential Membranes use an industry leading state-of-the art TLC (Thin Layer Composite) membrane offering high quality water for a broad range of water chemistry. Each membrane is needed to meet our factory's rigorous efficiency requirements prior to delivery.

Encapsulated membranes already come with quick connect fittings on the housing. These membranes use less drainage with a near 1:1 ratio. Super high performance improves recovery.

Pentair GRO 1:1 Ratio 75 GDP Membrane


  • Dimensions: 2.5" Diameter x 16" Length
  • Weight: 2 lb. 8 oz.
  • Fits most conventional units
  • Flow Rate: 75 GPD
  • Operating Pressure: 125 PSI
  • Max. Temperature: 120 F (49 C)
  • Operating Free Chlorine: 0.1 PPM
  • Operating pH level: 4-11

Pentair GRO-75EN Reverse Osmosis Membrane

What's Included

  • 75 GPD Encapsulated TLC Membrane
  • 1/4" Quick Connect Fittings
  • Permeate Check Valve


Real Experts. Real Value.


Helping people with clean, quality water.

   1  PURCHASE... 
   1  FAMILY...

Here at Quality Water Treatment, we want to do more than just provide you and your family with safe, clean, and healthy water.

We want to provide safe, clean, and healthy water to those in need.

That’s why we’ve partnered with, a well established 501c3 non-profit organization, that is changing the lives of those in need with their efforts to transform water in countries where access to clean water is scarce.

Your purchase today will provide safe, clean drinking water to a family of five in Nicaragua or Africa for a full year!

With your purchase, you can also be a part of the solution in helping us transform water for the betterment of humanity.

Added to cart!