Pinnacle™ or Pinnacle Plus™ reverse osmosis filters work well between 77º and 113º Fahrenheit (25º–45º Celsius). Reverse osmosis membranes work best using colder water. The colder the source water is the higher the pressure and the lower the flow will be through the reverse osmosis membrane. As such, more impurities or Total Dissolved Solid (TDS) are removed from the source water. The higher the temperature of the source water is the lower the pressure and higher the flow will be through the reverse osmosis membrane. As such, more impurities are able to pass through the filter. The difference is minimal in any case but worthwhile noting.

Reverse osmosis, also known as hyperfiltration, is the finest filtration known. This process will allow the removal of particles as small as ions from a solution. Reverse osmosis is used to purify water and remove impurities in order to improve the color, taste or properties of the fluid.

It can be used to purify fluids such as ethanol and glycol, which will pass through the reverse osmosis membrane, while rejecting other ions and contaminants from passing. Reverse osmosis uses a membrane that is semi-permeable, allowing the fluid that is being purified to pass through it, while rejecting the contaminants that remain. Reverse osmosis is capable of rejecting bacteria, salts, sugars, proteins, particles, dyes, and other constituents that have a molecular weight of greater than 150-250 daltons.

The Pinnacle + RO/DI Series offers units in the 100 gal/day (400 L) and 200 gal/day (800 L) ranges. All Pinnacle+™ RO/DI Units use the standard Seachem membranes which remove 99% all of impurities including silicates.

All Pinnacle units use the highest quality components available and feature modular design to ensure easy accessory add-ons.

We sell a variety of replacement and alternate cartridges like our Carbon Plus KDF cartridge, which can be substituted and the Carbon Block cartridge, which comes standard on all units. Both will ensure long membrane life.

The R/O unit we use from Seachem is the finest, and best operating unit on the market. We researched all available units before deciding on this one. It works like a dream. We depend on it and it doesn't let us down.

Joe Handelman, President, Pets Unlimited