{"product_id":"master-spas-dual-ma40-filter-set","title":"MasterSpas Dual MA40 Filter Set","description":"\u003cp\u003e\u003c!--StartFragment --\u003e\u003c\/p\u003e\n\u003cp\u003eThis filter set is the \u003cstrong\u003ealternative replacement\u003c\/strong\u003e for \u003cem\u003eMasterSpas Twilight Series\u003c\/em\u003e and \u003cem\u003eMichael Phelps Legend Series\u003c\/em\u003e hot tubs manufactured in \u003cstrong\u003e2025\u003c\/strong\u003e that are configured to run on \u003cstrong\u003esaltwater systems\u003c\/strong\u003e. Instead of the standard R4 \u0026amp; MA40 combination with EcoPur®, this bundle uses two MA40 filters to deliver the required filtration capacity without EcoPur® mineral conditioning.\u003c\/p\u003e\n\u003cp\u003eIncludes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2 × Master Clear MA‑40 Filters\u003c\/strong\u003e – Large‑capacity cartridges designed to capture dirt, debris, and particles for superior water clarity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eImportant Fit Notes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e✅ Designed for 2025 Twilight Series and Michael Phelps Legend saltwater models.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e❌ Does not accept EcoPur® Charge cartridge — mineral purification benefits are not included.\u003c\/li\u003e\n\u003cli\u003e🔒 Genuine Master Spas replacement parts — required for proper operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003c!--StartFragment --\u003e\u003c\/p\u003e\n\u003cp\u003e🗓️ \u003cstrong\u003eReplacement Schedule\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFilters: Replace every \u003cstrong\u003e12 months\u003c\/strong\u003e with regular care, or every \u003cstrong\u003e6 months\u003c\/strong\u003e with heavier use.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis bundle is ideal for spa owners running saltwater systems. Please verify your spa’s year, series, and water sanitation system type before purchase. Due to the nature of the product, we cannot accept returns on opened or incorrectly ordered filter sets.\u003c\/p\u003e\n\u003cp\u003e\u003c!--EndFragment --\u003e\u003c\/p\u003e","brand":"Master Spas","offers":[{"title":"Default Title","offer_id":45344534593673,"sku":null,"price":120.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0752\/6491\/7641\/files\/MA40.jpg?v=1780078316","url":"https:\/\/shop.masterspaswest.com\/products\/master-spas-dual-ma40-filter-set","provider":"MasterSpas West","version":"1.0","type":"link"}