{"product_id":"aqualtra-hot-tub-filter-2-pack-7-5-8-x-6-screw-in-1-sae-washable-nsf-certified","title":"AQUALTRA Hot Tub Filter 2-Pack — 7 5\/8\" x 6\" Screw-In 1½\" SAE, Washable NSF-Certified","description":"\u003cp\u003e\u003cstrong\u003eThe AQUALTRA 6CH-940 is a washable, NSF-certified replacement screw-in hot tub filter (7 5\/8\" x 6\", 1½\" SAE thread) sold as a convenient two-pack for easy swap-outs.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis pair of AQUALTRA spa filters is designed to match common OEM part numbers (for compatibility only) and deliver reliable mechanical filtration for hot tubs and small pools. Built with a PET composite media, a chlorine-resistant end cap and a polypropylene core, the cartridges are free of BPA and meet NSF\/ANSI material standards, giving you confidence in construction and chemical durability.\u003c\/p\u003e\n\n\u003ch3\u003eHow will this filter affect water clarity and debris capture?\u003c\/h3\u003e\n\u003cp\u003eThe AQUALTRA cartridge uses a dense pleated fabric and a proprietary \"dirt-locking\" design to trap finer particles than many basic filters. It captures hair, leaves, dust, sediment and sand before they recirculate, which helps maintain clearer water between cleanings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMulti-layer PET composite media for increased contaminant retention\u003c\/li\u003e\n  \u003cli\u003eDeep pleats to increase surface area and extend run time\u003c\/li\u003e\n  \u003cli\u003eReduces visible particles and protects pump and heater from grit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this filter easy to clean and reuse?\u003c\/h3\u003e\n\u003cp\u003eYes — the cartridge is designed for repeated rinsing instead of single-use disposal. Its durable fabric stands up to regular hosing, letting you extend the filter's service life while keeping maintenance simple.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWashable pleats rinse clean with a garden hose\u003c\/li\u003e\n  \u003cli\u003eRecommended cleaning interval: about once every 2 weeks under normal use\u003c\/li\u003e\n  \u003cli\u003eRemove filter before soaking in strong chemicals to avoid corrosion\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich tubs and part numbers does this unit fit?\u003c\/h3\u003e\n\u003cp\u003eThe filter measures 7 5\/8\" length with a 6\" outer diameter and a 1½\" SAE screw-in bottom. It is compatible with models that accept PWW50P3-style cartridges and several listed OEM references, but confirm your current filter size and thread type before purchase.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOuter diameter: 6\" — Length: 7 5\/8\"\u003c\/li\u003e\n  \u003cli\u003eTop style: circular handle — Bottom: 1½\" SAE threaded\u003c\/li\u003e\n  \u003cli\u003eCommon compatibility: PWW50P3 (not PWW50P4), FC-0359, Waterways 817-0050 and similar part numbers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable and safe is the construction?\u003c\/h3\u003e\n\u003cp\u003eThe cartridge combines NSF-certified materials chosen for chemical resistance and longevity. A chlorine-resistant end cap and a rigid polypropylene core support the pleated media so it holds shape during repeated cleanings and routine hot tub chemistry.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBPA-free PET composite filter media\u003c\/li\u003e\n  \u003cli\u003eChlorine-resistant end caps for extended life\u003c\/li\u003e\n  \u003cli\u003eNSF\/ANSI material certification for trusted components\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The AQUALTRA 6CH-940 two-pack is aimed at hot tub and small spa owners who need reliable, reusable replacement cartridges that match common OEM sizes. It's a good fit if you want NSF-certified materials, straightforward maintenance, and a cartridge that captures everyday debris while protecting equipment. Before ordering, verify your hot tub’s filter dimensions and thread type to ensure a proper fit. If you have questions about compatibility or care, AQUALTRA offers customer support to help match the filter to your system.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I clean the AQUALTRA 6CH-940 filter?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Clean the filter about every two weeks under normal use; hose it off and let dry before reinstalling.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this filter fit my hot tub?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Check for 6\" OD, 7 5\/8\" length and 1½\" SAE screw thread; matches PWW50P3-style housings and listed OEM numbers.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"AQUALTRA","offers":[{"title":"Default Title","offer_id":56832251625812,"sku":"B0CGLRQZLP","price":75.43,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/aqualtra-front-profile.jpg?v=1787025605","url":"https:\/\/gardenluxe.co.uk\/products\/aqualtra-hot-tub-filter-2-pack-7-5-8-x-6-screw-in-1-sae-washable-nsf-certified","provider":"Gardenluxe Uk","version":"1.0","type":"link"}