{"product_id":"pentek-big-clear-20in-filter-housing-heavy-duty-whole-house","title":"Pentek Big Clear 20in Filter Housing - Heavy Duty Whole House","description":"\u003cp\u003eIn this review the Pentek Big Clear 20in filter housing is examined for whole-house and high-flow sediment or carbon filtration systems; the bottom line is that it is a straightforward, heavy duty replacement housing for anyone who needs visible cartridge monitoring and easy service. The reviewer found the clear sump and robust cap construction make routine checks and cartridge changes simple, while the pressure relief button noticeably reduces the effort and mess when replacing a 20' x 4.5' cartridge in high-pressure lines.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy duty construction:\u003c\/strong\u003e Reinforced polypropylene cap and Styrene acrylonitrile sump provide durable service in large-capacity plumbing and resist cracking under normal whole-house conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClear sump housing:\u003c\/strong\u003e The transparent body allows on-site visual inspection of cartridge condition and flow without disassembly, helping to catch clogging early.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure relief button:\u003c\/strong\u003e The built-in relief button simplifies depressurizing the housing for cartridge changes, reducing spills and making maintenance faster.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Accepts any standard 20in x 4.5in Big Blue style sediment or carbon filter cartridge so you can choose cartridge type and micron rating to suit water quality.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1in NPT ports:\u003c\/strong\u003e The 1in NPT inlet and outlet fittings work with common plumbing runs in larger residential or light commercial systems for high flow applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThe Pentek Big Clear is aimed at homeowners and small facilities that need a heavy duty, visible filter housing for whole-house prefiltration or carbon polishing. It suits installers and DIYers who value easy inspection and straightforward servicing on a 20in cartridge platform.\u003c\/p\u003e\u003cp\u003eThose with very compact installations or who require integrated bracketry, specialty materials beyond reinforced polypropylene and SAN, or port sizes other than 1in NPT should consider alternate housings tailored to those constraints.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eClear sump allows quick visual checks of cartridge life without opening the housing.\u003c\/li\u003e\n\u003cli\u003eSturdy cap and materials provide reliable service in high-flow, large-capacity setups.\u003c\/li\u003e\n\u003cli\u003ePressure relief button makes cartridge replacement easier and cleaner.\u003c\/li\u003e\n\u003cli\u003eCompatible with common 20in x 4.5in heavy duty cartridges for flexible filtration choices.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eClear plastic sump can show staining over time and may require cleaning to maintain visibility.\u003c\/li\u003e\n\u003cli\u003e1in NPT sizing may be larger than needed for small point-of-use applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eWhole house filter housing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCartridge size\u003c\/td\u003e\n\u003ctd\u003e20in x 4.5in compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePort size\u003c\/td\u003e\n\u003ctd\u003e1in NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCap material\u003c\/td\u003e\n\u003ctd\u003eReinforced polypropylene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSump material\u003c\/td\u003e\n\u003ctd\u003eStyrene acrylonitrile (clear)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFeature\u003c\/td\u003e\n\u003ctd\u003ePressure relief button\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe Pentek Big Clear 20in housing is a practical, cost-effective choice for whole-house sediment or carbon systems where visual monitoring and easy service are priorities. It delivers durable construction and convenient maintenance for larger residential or light commercial installs and represents good value for anyone standardizing on 20in cartridges.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eCan I use any 20in cartridge in this housing?\u003c\/strong\u003e\u003cbr\u003eYes, it accepts any standard 20in x 4.5in Big Blue style sediment or carbon cartridge.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the pressure relief button reliable?\u003c\/strong\u003e\u003cbr\u003eYes, the integrated button safely relieves pressure to simplify cartridge removal and reduce splashing during service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the connection sizes?\u003c\/strong\u003e\u003cbr\u003eThe housing uses 1in NPT inlet and outlet ports for common high-flow plumbing connections.\u003c\/p\u003e","brand":"Pentek","offers":[{"title":"Default Title","offer_id":48611766862043,"sku":"B01LYM8XMR","price":144.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71KUR8YXDxL.__AC_SX300_SY300_QL70_FMwebp.webp?v=1778588018","url":"https:\/\/gearmusthave.com\/products\/pentek-big-clear-20in-filter-housing-heavy-duty-whole-house","provider":"GearMustHave","version":"1.0","type":"link"}