{"product_id":"aqualtra-pdm28-spa-filter-replacement-28-sq-ft-2-pack-durable-nsf","title":"AQUALTRA PDM28 Spa Filter Replacement 28 sq.ft. 2 Pack - Durable, NSF","description":"\u003cp\u003eIn this review the AQUALTRA PDM28 spa filter replacement is evaluated for spa owners who need a reliable, easy-to-maintain cartridge. The bottom line: this two-pack is best for people with compatible hot tubs seeking a washable, NSF certified cartridge that balances filtration performance and value. The review focuses on build quality, compatibility with common PDM28\/461273\/FC-9944 style cartridges, and how the filter performs during routine maintenance and regular use.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eNSF Certified Material:\u003c\/strong\u003e Constructed from PET composite, polypropylene core, and chlorine-resistant end caps to provide safe, BPA-free filtration for regular spa use.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eExact Compatibility:\u003c\/strong\u003e Sized with a 5 1\/2in outer diameter and 7 1\/4in length with three openings top and bottom to fit PDM28, 461273, FC-9944 and related cartridges.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eLarge Filtration Area:\u003c\/strong\u003e The 28 sq.ft. media provides substantial surface area to capture hair, dust, sediment and leaves before they recirculate in the spa.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eDirt-Locking Technology:\u003c\/strong\u003e The woven fabric is designed to trap finer particles more effectively than ordinary cartridge media, helping keep water clearer between cleanings.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eWashable and Reusable:\u003c\/strong\u003e Durable fabric and construction let you rinse and reuse the cartridge; regular biweekly cleaning maintains performance and extends life.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCustomer Support:\u003c\/strong\u003e The brand promises responsive assistance for issues, aiming to resolve concerns within 24 hours for peace of mind after purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe AQUALTRA PDM28 is aimed at hot tub and spa owners with compatible filter housings that accept a 5 1\/2in x 7 1\/4in cartridge with three openings top and bottom, especially those who prefer washable filters over one-time disposables. It suits people who swim frequently and want a cartridge that reduces visible debris and helps maintain clearer water between chemical treatments.\u003c\/p\u003e\n\u003cp\u003eThose who should look elsewhere include owners with nonstandard filter dimensions or uncommon connector types, and users who prefer ultra-fine cartridge technology used in some premium brands. Also, if you require a filter with very specific OEM branding, note this is an independent replacement brand provided for compatibility rather than an OEM part.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eNSF certified, BPA-free materials that resist chlorine and are built for regular spa exposure.\u003c\/li\u003e\n \u003cli\u003eLarge 28 sq.ft. filtration area and dirt-locking fabric that capture a variety of contaminants effectively.\u003c\/li\u003e\n \u003cli\u003eWashable, reusable design simplifies maintenance and reduces replacement frequency when cleaned every two weeks.\u003c\/li\u003e\n \u003cli\u003eClear compatibility information for common PDM28-style cartridges makes it easy to confirm fit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eNot an OEM part, so buyers must confirm fit carefully against their spa model and dimensions.\u003c\/li\u003e\n \u003cli\u003eRequires routine manual cleaning; performance depends on consistent maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAQUALTRA\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eModel compatibility\u003c\/td\u003e\n\u003ctd\u003ePDM28, 461273, FC-9944, SD-01392, 2015 newer Aquarest Spas\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eFiltration area\u003c\/td\u003e\n\u003ctd\u003e28 sq.ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eOuter diameter\u003c\/td\u003e\n\u003ctd\u003e5 1\/2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e7 1\/4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTop \/ Bottom openings\u003c\/td\u003e\n\u003ctd\u003e3 openings top, 3 openings bottom\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMaterials\u003c\/td\u003e\n\u003ctd\u003ePET composite media, polypropylene core, chlorine-resistant end cap (BPA-free)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe AQUALTRA PDM28 replacement is a practical choice for owners of compatible hot tubs who want a durable, NSF certified cartridge that balances performance and cost. Its reusable construction and dirt-locking fabric deliver noticeably cleaner water when cleaned on a regular schedule, making it a good value for routine spa maintenance while requiring users to confirm fit before purchase.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this filter fit my spa?\u003c\/strong\u003e\u003cbr\u003eCheck that your current cartridge measures approximately 5 1\/2in outer diameter and 7 1\/4in length with three openings top and bottom; the listing is intended for PDM28\/461273\/FC-9944 style cartridges.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow often should I clean the cartridge?\u003c\/strong\u003e\u003cbr\u003eIt is recommended to rinse and clean the filter about every two weeks for typical use to maintain flow and filtration performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this an OEM part?\u003c\/strong\u003e\u003cbr\u003eNo, AQUALTRA is an independent replacement brand; manufacturer names and part numbers are used for compatibility information only.\u003c\/p\u003e","brand":"AQUALTRA","offers":[{"title":"Default Title","offer_id":48261970133211,"sku":"B0CRB3PM7Y","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81eyJQysUSL._AC_SL1500.jpg?v=1778243689","url":"https:\/\/gearmusthave.com\/products\/aqualtra-pdm28-spa-filter-replacement-28-sq-ft-2-pack-durable-nsf","provider":"GearMustHave","version":"1.0","type":"link"}