Detailed Description: 2 Stage10 Inch Whole House Car Wash 3/4″ NPTF Ports Spotless Water System w/ Dual 10″x 2.5″ Mixed Bed DI Resin Refillable Filter Cartridges This Car Wash Filter System removes all of its mineral ions, which produces high-purity water without the scale buildup. This Dual DI System can effectively filter out mineral ions such as sodium, calcium, iron, copper, chloride, sulfate, nitrates, phosphates, silica, and ammonia to deliver clean and spotless water to your water hose. This systems is post auto-detailing / Window cleaning system. There is a 20″ x 4.5″ BB alternative to this system which serves the same purpose, but with high GPM (Gallons Per Minute) (eBay Item Number: 324658410944) Bulk Media for Refillable Cartridges Mixed Bed Ion Exchange Deionization Resin Media: Please search for eBay Item Number: 322892524186 Five pounds of resin is enough to refill an 2 inch x10 inch in-line refillable filter housing about 10 times or 2.5 inch x 10 inch refillable filter (for standard 10 inch housing) about 7 times. –> Capacity (gal.) according to the incoming PPM to the filter: 5 ppm – 2000 gallons 10 ppm – 1000 gallons 50 ppm – 200 gallons 100 ppm – 100 gallons 200 ppm -50 gallons 300 ppm – 35 gallons 400 ppm – 25 gallons 500 ppm – 20 gallons Pre-loaded Filter Cartridges: Removes/Reduces: Sediment silt scale rust particles Pesticides Bad tastes & Odors Turbidity Giardia Cysts Chlorine THMs Herbicides Chemicals & organic impurities Includes: 2 Stage White Steel Mounting Bracket Set of 2 filters: 2 x Mixed Bed Deionization (DI) Filters. ( Filter cartridges should be changed every 1 to 12 months under domestic conditions. Varies & depend on the water incoming ( source ) water quality & gallons you use per day/month. But you can keep in service for maximum 12 months 2 Standard Filter housings 3/4 inch NPT ( Accept Standard filters 9.75 x 2.5 inch) Opening Spanner / Wrench Installation instruction are included. Specifications: This system could start to generate the pure water at 20 PSI.Max. Operating Pressure: 80PSIThe recommended system flow rate including 2 DI filters is 0.75 to 1 GPM Maximum. System Maximum Flow Rate without filters 8 GPM. Maximum Operating Temperature: 125°F (52°C) Dimensions: H 15 inch x Length 9.5 inch x W 5 inchPort size 3/4″ NPTF (Threads are not compatible with garden hose 3/4″ Threads) Weight: 10 lbs Approx.