Tier1 Replacement for Aquapure AP810 AP85-934 5 Micron 10 x 5 Inch Whole House Sediment Water Filter HIGH QUALITY FILTRATION: Melt Blown Polypropylene filter media helps capture particles 5 micron or larger GREAT QUALITY WATER: Ensures quality water throughout your home FAST AND SIMPLE INSTALLATION: Easy installation for a frustration-free return to better water LONG LASTING FILTRATION: Filter life of up to four months UNIQUE FIT: Fits most standard 10 x 5-inch housings Dirt Oxidized Iron Particles Sand Sediment Turn off water supply. Press red pressure-relief button (if present) Unscrew housing. Remove large o-ring, wipe clean and set aside Discard used filter cartridge. Wash housing with dish soap and warm water using a nonabrasive sponge or cloth. Rinse thoroughly Fill 1/3 with water. Add about 1 tablespoon of bleach and scrub to disinfect. Rinse thoroughly Lubricate o-ring with clean silicone grease. Change o-ring if any damage cuts or degradation are present. Insert o-ring in groove <span class="a-text-bold">NOTE: </span>This step is important to ensure a proper housing seal. Make certain the o-ring is seated level in the groove Insert new filter cartridge Screw housing onto the cap and hand-tighten. Do not over tighten. Make sure cap standpipe slips into cartridge Turn on water supply. Press pressure-relief button (if present). Check for leaks before leaving installation Sediment in drinking water on its own isnt particularly hearmful to humans or pets but it can be an indication of lead or iron contamination which can cause serious health issues. If you suspect there is lead in your pipes get your water tested. Sediment filters help protect other appliances and posessions from the harmful effets of particles which can cause staining and spots on clothes, sinks, toilets and more and wear and deterioration on pipes and appliances If other filtration mediums are already in place in your home, sediment filters as a first layer of defense can increase the lifetime of your other filters by reducing the number of particles and contaminants that would otherwise wear on those other filters.