Pentair 3 Stage Reverse Osmosis System (GRO-350B)
Deals on Softeners, Whole Home Filters, Reverse Osmosis, and More

Softeners, Whole Home Filters, Reverse Osmosis, and More

Value Bundles + Limited Time Special Offers + Clearance Items... CLICK HERE TO VIEW!

COVID-19 Update April 20: Water Softener shipments are delayed. Read more here.

Pentair 3 Stage Reverse Osmosis System (GRO-350B)

SKU: 161110


See Special Deals and Offers... Click Here!

Free Shipping

Orders Over $149

Safe & Secure

Online Checkout

30 Day

Return Policy


110% Money Back


Get the drinking water you've been longing for with the Pentair 3 Stage Reverse Osmosis System. This system has been tested according to NSF/ANSI 58 for the reduction of countless drinking contaminants. Colour coded cartridges and an effortless click-in lock cartridge installation makes cartridge changes intuitive and easy. Ideal for homes and businesses.


Tech Specs

  • 2.1 Gallon Storage Tank
  • Incoming water hardness should be less than 10 gpg
  • Incoming Iron, Sulfide and Manganese should be less than 0.1 ppm
  • Chlorine in water supply should be less than 2 ppm
  • Water pressure min/max = 40-100 psi
  • Max supply TDS = 2000 ppm
  • For use on microbiologically safe water only
  • System Dimensions:  11.32"W x 5.46"D x 12.54"H
  • Tank Dimensions:  13.84" H x 8.94" DIA

In the Box

  • 1 x 3-Stage RO system with filter elements
  • 1 x Lead-free drinking water faucet with air gag
  • 1 x Storage tank
  • 1 x Installation hardware kit
  • All Necessary Tubing