{"product_id":"grefilt-pwk30-hot-tub-filter-30-sq-ft-5-pack-hot-springs-watkins-compatible","title":"Grefilt PWK30 Hot Tub Filter 30 sq.ft - 5 Pack | Hot Springs\/Watkins Compatible","description":"\u003cp\u003eUpgrade your spa filtration with the Grefilt PWK30 hot tub filter. This compatible replacement is designed to fit Hot Springs PWK30 and related models, delivering reliable filtration across sessions and helping you maintain a welcoming, clean soak.\u003c\/p\u003e\u003cp\u003eIn everyday use, you may notice less maintenance time and steadier water clarity. The five-pack lets you rotate between filters or stock up for upcoming seasons, reducing downtime when you need a fresh cartridge quickly.\u003c\/p\u003e\u003cp\u003eWhether you run a weekend soak or daily sessions, this cartridge is designed to help maintain clean water by capturing debris, oils, and impurities more efficiently, thanks to its larger filtration area. The five-pack option supports convenient rotation during season changes or heavy-use periods, so you can minimize downtime while ensuring you always have a ready replacement.\u003c\/p\u003e\u003ch3\u003eKey specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eLength 10 1\/2 inches; outer dimension 5 7\/8 inches; top and bottom openings 1 15\/16 inches\u003c\/li\u003e\n\u003cli\u003eFiltration area 30 square feet; core material PP\u003c\/li\u003e\n\u003cli\u003ePackage quantity 5 filters\u003c\/li\u003e\n\u003cli\u003eCompatibility Hot Springs PWK30, Watkins models 31489, 71825, 73178, 73250, Unicel C-6430, Filbur FC-3915, and more\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCare, durability, and safety\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEasy installation with no special tools; rinse every two weeks for optimal performance\u003c\/li\u003e\n\u003cli\u003eCorrosion-resistant end caps and reinforced polyester fiber for long-lasting filtration\u003c\/li\u003e\n\u003cli\u003eNSF-certified materials support safe, reliable filtration for your spa\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNote: This is a compatible spare part offered by Grefilt as an independent brand; the original manufacturers’ names and numbers are shown for reference only.\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: Is this filter compatible with Hot Springs PWK30 and related models?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It is a compatible PWK30 replacement for Hot Springs and common Watkins models; check exact dimensions to confirm a fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What maintenance does this filter require?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Rinse every two weeks, air dry, and reinsert; regular cleaning helps filtration and spa water clarity.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Grefilt","offers":[{"title":"Default Title","offer_id":43982757724294,"sku":"B0FDB7C7YR","price":97.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/1602\/5478\/files\/grefilt-pwk30-hot-tub-filter-5pack.jpg?v=1778765346","url":"https:\/\/patiozora.com\/products\/grefilt-pwk30-hot-tub-filter-30-sq-ft-5-pack-hot-springs-watkins-compatible","provider":"PatioZora","version":"1.0","type":"link"}