{"product_id":"darlly-spa-pool-replacement-filter-cartridge-80-sq-ft-70804-fc1976-for-spa-and-pool-systems","title":"Darlly Spa Pool Replacement Filter Cartridge 80 Sq Ft 70804 FC1976 For Spa And Pool Systems","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Darlly Spa\/Pool Replacement Filter Cartridge (70804) FC-1976 — a high-capacity 80 sq ft cartridge engineered to deliver consistently clean, clear water for your spa or pool. Built to be compatible with Clean \u0026amp; Clear Plus configurations and Waterway Crystal Water C-7470 systems, this cartridge is designed to perform reliably inchlorine, bromine, and saltwater environments alike.\u003c\/p\u003e \u003cp\u003eKey design and material advantages that matter in real-world use:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e80 sq ft filtration media\u003c\/strong\u003e provides extended run times between cleanings and better dirt-holding capacity, so you spend less time wrestling with maintenance and more time enjoying your spa or pool.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e7\" outside diameter, 20\" length\u003c\/strong\u003e with \u003cstrong\u003e3\" open top\u003c\/strong\u003e and \u003cstrong\u003e3\" open bottom\u003c\/strong\u003e for versatile fitting and strong, consistent flow across filtration cycles.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReinforced end caps\u003c\/strong\u003e with screen mesh integrated during production, boosting end-cap strength and overall cartridge integrity to resist cracking and leakage under heavy use.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eABS center core\u003c\/strong\u003e injection-molded and \u003cem\u003eNSF-certified\u003c\/em\u003e for safety, durability, and dependable water flow from start to finish.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSingle-layer tri-lobal media\u003c\/strong\u003e — the highest-quality spun-bonded polyester that resists fraying and tearing while standing up to chlorine and bromine without losing filtration efficiency.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bands and robust construction\u003c\/strong\u003e designed to maintain pore structure and performance over time, minimizing performance drops as the cartridge ages.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eScrew-thread integrity guaranteed for life\u003c\/strong\u003e — if the threads fail during removal, you won’t face costly repairs or downtime. We stand behind this critical component so you can service your system with confidence.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this cartridge is a smart choice for your system\u003c\/h3\u003e\n\u003cp\u003eFor spa enthusiasts and pool owners, every detail matters. The Darlly 70804 cartridge isn’t just about trapping more debris; it’s about delivering cleaner water with less maintenance effort. The combination of reinforced end caps, a solid ABS core, and chemically resistant media means you’ll notice clearer water, steadier flow, and fewer filter changes—even in demanding setups.\u003c\/p\u003e \u003ch3\u003ePractical use cases and tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrongspa applications:\u003e Ideal for hot tubs and therapy baths where high-temperature operation and frequent sanitizer use demand durable, chlorine- and bromine-resistant filtration media.\u003c\/strongspa\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrongpool installations:\u003e Works well with systems that require robust filtration over longer cycles, including saltwater pools where media longevity and chemical tolerance are critical.\u003c\/strongpool\u003e\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaintenance routine:\u003c\/strong\u003e Rinse the cartridge under clean water before installation to remove manufacturing debris, and periodically check the end caps and threads for any wear. If you ever encounter thread-related removal issues, the lifetime guarantee covers this key point of failure.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePerformance tips:\u003c\/strong\u003e Monitor pressure and flow; a gradual drop in flow without visible blockage is a cue that it may be time to replace, ensuring you maintain optimal filtration and water clarity.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose the Darlly 70804 cartridge for dependable filtration that lasts, with thoughtful engineering that protects your investment and keeps spa and pool water sparkling. The combination of high-capacity filtration, reinforced construction, and a lifetime guarantee on the screw-thread makes this cartridge a standout choice for discerning buyers who value longevity and real-world performance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Darlly","offers":[{"title":"Default Title","offer_id":43463203225642,"sku":"70804","price":58.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/4014\/1354\/files\/70804.jpg?v=1769976157","url":"https:\/\/bathparts.com\/products\/darlly-spa-pool-replacement-filter-cartridge-80-sq-ft-70804-fc1976-for-spa-and-pool-systems","provider":"Bath \u0026 Spa Superstore","version":"1.0","type":"link"}