{"product_id":"darlly-spa-pool-replacement-filter-cartridge-50401-fc-3637-c-5637-pm40-for-spa-and-pool-systems","title":"Darlly Spa Pool Replacement Filter Cartridge 50401 FC-3637 C-5637 PM40 for Spa and Pool Systems","description":"\u003cdiv\u003eDarlly Spa\/Pool Replacement Filter Cartridge 50401 is your go-to direct replacement for keeping Marquis and Amish Country spas and pools crystal clear. This 50401 cartridge (also listed as FC-3637, C-5637, PM40) is engineered to slot into your existing setup without missing a beat, replacing a wide range of older part numbers including 14006, 37-0214, 4900-59, 609464, 645544036377, AK-4033, C-5637, PLE-051-9542, and PPM40. If your spa is built on Marquis or Amish Country bottom configurations, this cartridge is designed to fit and perform. What makes this cartridge stand out\n- Precise compatibility: Specifically crafted for Amish Country (Marquis) and Marquis Spas, including Marquis\/Amish Country bottom models, so you don’t have to guess if it will fit.\n- Generous filtration area: 40 square feet of filtration media delivers better debris capture, helping your spa stay clearer between cleans.\n- Durable media in a compact form: 4 oz filtration media provides effective particle retention while maintaining a compact, easy-to-handle cartridge.\n- Exacting dimensions for a hassle-free install: Bottom diameter 1-5\/8\", top diameter 1-1\/16\", overall length 19-5\/8\", with a bottom open diameter of 5-3\/16\" and a top open style. These specs ensure a snug, secure fit in compatible housings. Who benefits most\n- Spa owners with Marquis or Amish Country systems seeking a reliable, ready-to-fit replacement cartridge\n- Homes that want straightforward maintenance with fewer cartridge omissions or improvisations\n- Those aiming to improve water clarity and filtration efficiency without changing their filtration housing How this replacement cartridge helps you maintain a healthier spa\n- Cleaner water, fewer maintenance cycles: The 40 sq ft of media traps dirt, oils, and debris more effectively, reducing frequency of backwashing or deep cleanings.\n- Easier routine maintenance: A straightforward, true-to-fit cartridge that’s easy to remove, rinse, or replace, helping you keep filtration simple and predictable.\n- Long-term value: By using a robust replacement that matches the original performance, you preserve pump efficiency and water quality without resorting to generic substitutes. Practical tips for best results\n- Install with clean hands and ensure the cartridge seats firmly in the housing before running the pump.\n- Rinse the cartridge under cool water before first use to remove any loose manufacturing residue.\n- Periodically rinse the media, and replace the cartridge when water flow drops noticeably or after several months of use based on spa frequency.\n- Pair with a regular spa maintenance routine: balance pH, monitor sanitizers, and keep the filter area free of buildup for optimal performance. In short, the Darlly 50401 replacement cartridge offers a precise fit and dependable filtration for Marquis Spas and Amish Country systems, delivering solid performance with each cycle. If you’re looking for a trusted, OEM-compatible solution that aligns with your spa’s original design, this cartridge is built to satisfy and simplify your filtration routine. \u003cbr\u003e \u003ctable class=\"margintop4\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan id=\"_ctl0__ctl0_listviewSpecificationAttributes_ctrl0_labelAttributeName\"\u003eApplication\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan id=\"_ctl0__ctl0_listviewSpecificationAttributes_ctrl0_labelAttributeValue\"\u003eAmish Country (Marquis), Marquis Spas, Marquis\/Amish Country\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan id=\"_ctl0__ctl0_listviewSpecificationAttributes_ctrl1_labelAttributeName\"\u003eBottom Physical Dimension\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan id=\"_ctl0__ctl0_listviewSpecificationAttributes_ctrl1_labelAttributeValue\"\u003e1-5\/8\"\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan id=\"_ctl0__ctl0_listviewSpecificationAttributes_ctrl2_labelAttributeName\"\u003eBottom Style\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan id=\"_ctl0__ctl0_listviewSpecificationAttributes_ctrl2_labelAttributeValue\"\u003eOpen\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan id=\"_ctl0__ctl0_listviewSpecificationAttributes_ctrl3_labelAttributeName\"\u003eDiameter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan id=\"_ctl0__ctl0_listviewSpecificationAttributes_ctrl3_labelAttributeValue\"\u003e5-3\/16\"\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan id=\"_ctl0__ctl0_listviewSpecificationAttributes_ctrl4_labelAttributeName\"\u003eLength\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan id=\"_ctl0__ctl0_listviewSpecificationAttributes_ctrl4_labelAttributeValue\"\u003e19-5\/8\"\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan id=\"_ctl0__ctl0_listviewSpecificationAttributes_ctrl5_labelAttributeName\"\u003eMedia Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan id=\"_ctl0__ctl0_listviewSpecificationAttributes_ctrl5_labelAttributeValue\"\u003e4oz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan id=\"_ctl0__ctl0_listviewSpecificationAttributes_ctrl6_labelAttributeName\"\u003eSquare Footage\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan id=\"_ctl0__ctl0_listviewSpecificationAttributes_ctrl6_labelAttributeValue\"\u003e40 sq ft\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan id=\"_ctl0__ctl0_listviewSpecificationAttributes_ctrl7_labelAttributeName\"\u003eTop Physical Dimension\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan id=\"_ctl0__ctl0_listviewSpecificationAttributes_ctrl7_labelAttributeValue\"\u003e1-1\/16\"\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan id=\"_ctl0__ctl0_listviewSpecificationAttributes_ctrl8_labelAttributeName\"\u003eTop Style\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan id=\"_ctl0__ctl0_listviewSpecificationAttributes_ctrl8_labelAttributeValue\"\u003eOpen\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Darlly","offers":[{"title":"Default Title","offer_id":41905235492906,"sku":"50401","price":40.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/4014\/1354\/files\/50401.jpg?v=1769976126","url":"https:\/\/bathparts.com\/en-um\/products\/darlly-spa-pool-replacement-filter-cartridge-50401-fc-3637-c-5637-pm40-for-spa-and-pool-systems","provider":"Bath \u0026 Spa Superstore","version":"1.0","type":"link"}