1st Stage – Sediment Filter (PP) Standard size: 10″ x 2.5″ 5 micron filter fineness (If you need 1 micron, 10 micron, 20 micron, 25 micron or 50 micron sediment filter, please make a note.) Remove larger particles, dirt, silt, rust, sand, etc. Protects and extends the life of the membrane and system. Recommend replacing every 6 months (varies depending on the water source quality). 2nd Stage and 3rd Stage – Carbon Block Filter (CTO) Standard size: 10″ x 2.5″ Remove chlorine, tastes, odors, VOCs, pesticides and herbicides, etc. Recommend replacing every 6 months (varies depending on the water source quality). 4th Stage – 36/50/75/100/150 GPD Reverse Osmosis Membrane Filter (RO) Standard size: 2″ x 12″ Reject impurities down to 0.0001 microns, it can efficiently remove up to 99% of over 1,000 contaminants from your water, including heavy metals (primarily fluoride, calcium, magnesium, lead, colloids, chromium, and nitrates), organic, rubber mass, harmful minerals and another soluble salt from water. Recommend replacing every 2~3 years (varies depending on the water source quality). 5th Stage – Post Carbon Filter (T33) Standard size: 2″ x 10″ Removes any taste or odor the water may have in the tank and create a sweeter water taste Recommend replacing every 1 year (varies depending on the water source quality). Note: 1/4″ Quick Connector Defaulted. If you need female thread connector, please send a picture to show your filter and fittings before setting order, we will help you. 6th Stage – Alkaline Filter (ALK) Standard size: 2″ x 10″ Only fit for the filter with 1/4″ Quick connect fittings Made with all-natural mineral resources, enhance your drinking water by boosting pH and Oxygen levels while adding essential minerals including calcium, potassium, magnesium, and more. Recommend replacing every 6 months (varies depending on the water source quality). Compatible Models: Membrane Solutions 6-stage filters set compatible with most 10″ standard under the counter reverse osmosis water systems, such as: APEC Water ESSENCE RO-PH90, ROES-PH75, ROES-PHUV75, FILTER-MAX-ESPH, FILTER-MAX-ESPHUV-SS Express Water ROALK5D, ROALKUV10M, FLTSETALKUV075, FLTSETALKUV115Q, FLTSETALKUV225Q, FLTSETALKUV0710, FLTSETALKUV1110Q, FLTSETALKUV2210Q, FLTSETALKUV10Q Geekpure RO5-MF, RO5-AF, RO6-UV, iSpring F9K, F10KU, F19K75, F21KU75, F31KU75, PH100, RCC7AK, RCC7AK-UV, RCC7D, RCC7P-AK, RCC1UP-AK Koolermax AR-122, AR-125 Max Water RO9S PureDrop RTW5AK, RTW5AK SimPure SP5-RO75, SP5-RO100, T1, T2 Ukoke RO75GP, UWFS01L *The list is under continuous updating. Please contact us via eBay message if you don’t find your system model here. Disclaimer: This product is a generic item that is designed to replace the original part. Any brand names or logos are the registered trademarks of their respective owners. Any use of any brand name or model designation for this product is made solely for purposes of demonstrating compatibility. Safe Material: Membrane Solutions water filters are made with high quality filtration components to protect and prolong the lifespan of your reverse osmosis system. Food-grade materials with ANSI/NSF 42/58 certification ensure your drinking water safe. Package Includes: Half-Year Set: 1 x Sediment filter (PP) 2 x Carbon block filter (CTO) 1 x 36/50/75/100/150 GPD reverse osmosis membrane filter (RO) 1 x Post carbon filter (T33) 1 x Alkaline filter (ALK) 1 x Accessories kit One-Year Set: 2 x Sediment filter (PP) 4 x Carbon block filter (CTO) 1 x 36/50/75/100/150 GPD reverse osmosis membrane filter (RO) 1 x Post carbon filter (T33) 2 x Alkaline filter (ALK) 1 x Accessories kit Two-Year Set: 4 x Sediment filter (PP) 8 x Carbon block filter (CTO) 1 x 36/50/75/100/150 GPD reverse osmosis membrane filter (RO) 2 x Post carbon filter (T33) 4 x Alkaline filter (ALK) 1 x Accessories kit Three-Year Set: 6 x Sediment filter (PP) 12 x Carbon block filter (CTO) 2 x 36/50/75/100/150 GPD reverse osmosis membrane filter (RO) 3 x Post carbon filter (T33) 6 x Alkaline filter (ALK) 1 x Accessories kitOn Sep 5, 2023 at 02:24:19 PDT, seller added the following information: