SimPure DB20P-3 20″ x 4.5″ 3 Stage Big Blue Whole House Water Filter System (1 Inlet/Outlet Port) with Big Housings & Pressure Gauges & Pressure Relief Valve- GAC Filter, Carbon Block, Sediment Filter Cartridges – Whole Home Water Filters Portable Steal Frame. SimPure DB20P-3 3 Stage Big Blue 20″x4.5″ Whole House Water Filter System. The SimPure DB20P-3 is a 3 Stage Whole House Filtration System(PP Sediment + GAC + CTO). 1st filter (PP sediment filter) can remove dirt, silt, sand, rust and scale particles. The 2nd-stage filter (GAC granulated activated carbon filter) can remove chlorine, chloramine, VOCs and etc. The 3rd- filter(CTO carbon block filter) can remove chlorine, chloramine, VOCs, bad taste and odor. Extend the life of your dishwasher and other appliances, and reduce cost of the energy. With our instruction you can use and install DB20P-3 3-stage whole house water filtration system with no problem. Housing Bracket so You can choose mounted or unmounted installation. Pressure gauges help to monitoring your system and to know which filter you need to change and when. Remove the filters easily by the Pressure Release Buttons. The black cap has 1 female National Pipe Thread Taper (NPT) threaded input and output connections, DOUBLE O-ring to ensure watertight seal. This DB20P-3 water filtration system connects directly to your home’s main water supply and fits standard American plumbing with 1 NPT inlet and outlet. It comes with a installation and maintenance guide. And It Is Easy to Replace Water Filter Cartridges: All SimPure Water whole house water filter replacement cartridges are designed for quick and easy replacement to keep your system up and running. The SimPure DB20P-3 Water Whole Home Water Filtration Systems is constructed with standing stainless-steel frames for long term durability and quality. Stage 1: PP Sediment Filter. Remove dirt, silt, sand, rust and scale particles , etc. Stage 2: GAC Filter. Remove chlorine, chloramine, VOCs, etc. Stage 3: CTO Filter. Remove chlorine, chloramine, VOCs, bad taste and odor, etc. Double O-Ring ensure watertight seal. Three accessible pressure release buttons for easy filter change. Three pressure gauges: Monitor your system’s performance, know which filters you need to change and when to change them. Standard 1 female NPT thread connections and long high efficiency housings for easy adaptability and high flow. Material: 100% food-grade ABS + Metal + Stainless Steel. Filter Size: 20 4.5 Inch. Filter Life (Months): 6 Month. Flow Rate (GPM): 15 GPM. Inlet/outlet Connection: 1 female NPT thread. Pressure Range: 25 – 90 psi. 1x DB20P-3 assembled housing kit with bracket. 3x Installed Filters(PP sediment+GAC+CTO filters). 3x Extra Filters for Replacement (PP sediment+GAC+CTO filters). 2x Plastic Expansion Nail. 6x Installed O-rings (2 in each housing). 1x Punch Positioning Sticker. Q: Leaks between filter head and filter bowl of housing A1: Tap water pressure is too high; make sure it is below 90psi (620kpa). If too high, fit a pressure regulator. A2: The O-ring may not be in place. Clean and lubricate O ring with silicone grease. Also, clean the groove where the O-ring sits. Replace O-ring in the groove above threads. Screw the bowl back on the filter head securely by hand, then use the wrench to fit it snugly. Do not over tighten. Q: Leaks on inlet/outlet connections A1: Wrap the Teflon tape around pipe threads of each fitting in a clockwise direction, add more tape as necessary for the correct seal. A2: Brass fittings may require to tighten ½-turn with a wrench. Q: Leaks from the pressure release button A: The pressure release button has a screw under the bracket. Simply tighten that screw and the leaking should stop. Q: Water Pressure is slowing after some time A: Recommended changing the cartridges every 6-12 months depending on the amount of contaminants present in the feed water supply. If the system has been working correctly and the water pressure is slowing, it may be time to change the filter cartridge element. Q: Water Pressure is slowing immediately after installation when using a Carbon Cartridge A1: Make sure the plastic wrapper around the filter has been removed. Check the filter cartridge has not been installed incorrectly, especially the GAC filter, please look at the picture, this is the botttom side of the GAC filter. A2: Bathtubs, utility sinks, garden hoses, showers, or anything considered high-flow should be avoided for the first 72 hours. Any high-flow situation within the first 72 hours may cause a temporary carbon blockage. To clear the blockage, turn off any running water for at least 10 minutes and resume using water at low or regular flow rates. Q: Water appears cloudy and grey A: The water may appear cloudy or grey for the first 3-5 days after installation due to the tiny air bubbles being purged from the filters and extra carbon dust in the water. (depending on the filter cartridge being used) To solve this problem, please flush the whole system for about 10 minutes after you install it, then close the faucet and wait for one hour. And repeat the steps until the output water is clean.