Pentek DGD-5005-20 5 Micron 20 x 4.5 Comparable Whole House Sediment Water Fi. QUICK & EASY INSTALLATION: Quick and easy installation into your 20 x 4.5 Inch Big Blue whole house filtration system. 6 MONTH FILTER LIFE: By replacing your water filter every 6 months , depending on the quality of your water, you keep your water tasting great with the Tier1 SDC-45-2005. HIGH QUALITY FILTRATION: This Tier1 155358-43 spun-polypropylene sediment filter reduces sediment, dirt, particulates, sand, and silt. REPLACEMENT PART FOR MANY PART NUMBERS & MODELS: This filter is comparable to many 5 Micron 20 x 4.5 sediment filter. Replace your old Pentek DGD-5005-20 or Liquatec SDF-45-2005 with a Tier1 SDF-45-2005. 100% TIER1 NO WORRIES GUARANTEE: We stand behind the quality of filtration and overall performance of our Tier1 filters! Dirt Rust and Corrosion Sand Sediment Silt 155358-43 P5-20BB C155358-43 PENTEK-DGD-5005-2 0DGD-5005-20 SDC-45-2005 FPMB-BB5-20 SDF-45-2005 Hydronix SDC-45-2005 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.