{"product_id":"master-spas-r4-15-mpt-filter","title":"Master Clear® MA-R4 Filter - 1.5\" MPT","description":"\u003cp\u003e\u003c!--StartFragment --\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe MA-R4 1.5\" MPT (Male Pipe Thread) is the current-generation primary filter for a wide range of MasterSpas hot tubs and swim spas. Built with a 1.5-inch male pipe thread connection, it installs securely into your spa's filtration housing and is designed to accept the EcoPur® Charge Mineral Cartridge inside, delivering both mechanical filtration and mineral purification in a single unit. The EcoPur® cartridge is sold separately.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eUnlike the 2\" FPT version of the MA-R4, this filter uses a 1.5-inch male thread and does not require an adapter for pre-2025 spas.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eCompatible Models - Current Generation (2025+)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cem\u003eLegacy Swim Spas:\u003c\/em\u003e LW 12, LW 15\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cem\u003eH2X Swim Spas:\u003c\/em\u003e Challenger 19D\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cem\u003eMP Swim Series:\u003c\/em\u003e Force D, Momentum, Momentum D, Signature Pro, Signature D\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eAlso Compatible with These Older Models\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cem\u003eH2X Swim Spas:\u003c\/em\u003e Challenger 15D, Challenger 18D, Challenger 18D Pro, Trainer 12, Trainer 14, Trainer 15, Trainer 15D, Trainer 17, Trainer 18, Trainer 18D, Trainer 19, Trainer 19D\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cem\u003eMP Swim Series:\u003c\/em\u003e Force, Impact, Momentum 50, Momentum 80, Momentum 80 D, Signature, Signature S\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eReplacement Schedule\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eReplace every 12 months under normal use, or every 6 months with heavier use. If you use the EcoPur® Charge Cartridge, replace it every 6 months.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cem\u003eDue to the nature of filtration products, we cannot accept returns on opened or incorrectly ordered items. Please verify your model and production year before purchasing.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Master Pool \u0026 Spa Supply","offers":[{"title":"Default Title","offer_id":45344531710089,"sku":null,"price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0752\/6491\/7641\/files\/PMA-R4.jpg?v=1780076319","url":"https:\/\/shop.masterspaswest.com\/products\/master-spas-r4-15-mpt-filter","provider":"MasterSpas West","version":"1.0","type":"link"}