The GPD rating of Heron RO Membrane designates the output of the RO filter in gallons per day. This is how all reverse osmosis filters are rated regarding size. A 60 GPD Heron RO Membrane produce 60 gallons of RO water in a 24 hour period under optimum conditions of water temperature and pressure. With age, the gpd output of an ro filter declines. When the Heron RO Membrane is exhausted it is inefficient and wasteful. Proper maintenance on a reverse osmosis filter includes regular replacement of the pre-filter cartridges which protect the membrane. This is especially important in high demand uses such as discus fish water changes or maintaining a large marine or reef fish room. Neglecting pre-filter cartridge replacement results in premature ro membrane depletion. TFC stands for thin film composite. This type of membrane works on both well water and city municipal water supplies. Heron RO Membrane membranes require carbon pre-filters to remove chlorine from the water. All reverse osmosis filters are manufactured with carbon pre-filters and these should be changed regularly. Sediment pre-filter cartridges should also be changed on a regular basis on all RO filters.
These Heron RO Membrane replacement RO membranes are some of the finest RO membranes on the market. This Heron RO Membrane is manufactured by Dow/Toray/CSM sheet. These Heron RO Membrane feature hi silicate removal. This Heron RO Membrane provides the soft, pure water desired for aquarium or drinking water use. This Heron RO Membrane is applied for NSF certified and FDA approved for cooking and drinking water use. Heron RO Membrane is made from high quality raw materials. These Heron RO Membrane replacement filters fit any standard ten inch RO filter housings. Reverse osmosis filters use standard size housing. This also allows easy upgrade. To increase the output of any RO filter, simply replace the RO membrane with the desired size. Replace the flo-restrictor to match and the ro filter is upgraded without purchasing a new filter unit. These membranes fit Osmotic, Spectrapure, Pinnacle, Barracuda, Dolphin, Stingray, you name it- this one fits it!!!