The Pentair® Pentek® RO-2550 Reverse Osmosis (RO) Drinking Water System reduces lead, chlorine taste & odor, dissolved minerals & salts, copper, hexavalent & trivalent chromium, barium, radium 226/228, selenium, and cysts such as Cryptosporidium and Giardia by mechanical means.

The carbon/sediment pre-filter reduces the particles and chlorine taste and odor to prolong life of RO membrane. The RO membrane separates water molecules from dissolved salts and minerals. Up to 96% of these total dissolved solids (TDS) are rejected and sent down the drain. The RO filtered water is sent to the storage tank until you need it. When you turn on the drinking water faucet, the filtered water from the storage tank is sent through a carbon polishing filter which provides final taste and odor filtration before the water reaches your glass. Cleaner, fresher water whenever you want it!

Features & Benefits

Includes 50 gallon per day reverse osmosis element

Installed under the sink

Water on demand delivered from a 2.8 gallon storage tank

Automatic shut-off valve helps conserve water

Reduces salts, dissolved minerals, bad taste and odor

Designed for chlorinated and non-chlorinated water

Reduces particles as small as 1/1000 of a micron in size by mechanical means

NSF/ANSI Standard 58 certified to reduce cysts such as Cryptosporidium and Giardia by mechanical means

Features & Benefits

Printed copies also available at