{"product_id":"pentair-355220-43-cartridge-filter-50-micron-big-blue","title":"Pentair 355220-43 Cartridge Filter 50 Micron Big Blue","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PENTAIR 355220-43 is a string-wound, fibrillated polypropylene cartridge filter rated at 50 microns, designed for sediment reduction in plumbing filtration systems. It measures 4-1\/2 inches in outside diameter and 9-7\/8 inches in length, sized for Big Blue style filter housings. Rated to a maximum of 8 psi and suitable for water temperatures between 40 degrees F and 165 degrees F, this cartridge is a standard replacement for residential and light commercial whole-house or point-of-entry sediment filtration applications. Installation is performed by licensed plumbers or qualified water treatment technicians.\u003c\/p\u003e\n\u003cp\u003eThis cartridge is used in Big Blue filter housings for whole-house sediment filtration at point-of-entry installations. It targets sediment particles at the 50-micron level, making it appropriate as a pre-filter stage in residential or light commercial systems where sand, silt, and coarse particulate are present in the supply line. Its fibrillated polypropylene construction is compatible with cold and hot water supply lines within its rated temperature range.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e50-micron filtration rating targets sediment including sand, silt, and coarse particulate\u003c\/li\u003e\n  \u003cli\u003eString-wound fibrillated polypropylene construction for consistent depth filtration\u003c\/li\u003e\n  \u003cli\u003e4-1\/2 inches OD fits standard Big Blue filter housings\u003c\/li\u003e\n  \u003cli\u003eRated for water temperatures from 40 degrees F to 165 degrees F\u003c\/li\u003e\n  \u003cli\u003eMaximum operating pressure of 8 psi\u003c\/li\u003e\n  \u003cli\u003eLightweight at 1.31 pounds for easy cartridge swap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a replacement cartridge for Big Blue style filter housings used in residential and light commercial point-of-entry sediment filtration systems.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eCartridge replacement is typically performed by a licensed plumber or water treatment technician. Shut off the supply water and relieve system pressure before opening the filter housing. Follow local plumbing codes and the housing manufacturer guidelines for cartridge seating and housing torque. Inspect the housing O-ring for wear or damage each time the cartridge is replaced.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStyle\u003c\/strong\u003e: String-Wound\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMicron Rating\u003c\/strong\u003e: 50 micron\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 4-1\/2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 9-7\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Fibrillated Polypropylene\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHousing Type\u003c\/strong\u003e: Big Blue\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Operating Pressure\u003c\/strong\u003e: 8 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Operating Temperature\u003c\/strong\u003e: 40 degrees F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Operating Temperature\u003c\/strong\u003e: 165 degrees F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReduces\u003c\/strong\u003e: Sediment\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.31 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: PENTAIR\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 355220-43\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PENTAIR","offers":[{"title":"Default Title","offer_id":51541234024754,"sku":"355220-43","price":49.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/fe6852bd69a8b7ef365aa07fa5a1a1b4.jpg?v=1785870472","url":"https:\/\/voomisupply.com\/products\/pentair-355220-43-cartridge-filter-50-micron-big-blue","provider":"Voomi Supply","version":"1.0","type":"link"}