4 Pack Pool & Spa Filter, Compatible with Pentair Clean & Clear Plus 420 (CCP420), Waterway Crystal Water 425, Replaces 178584, Unicel C-7471, Filbur FC-1977, Darlly 71053 — Open-Box, 39% Off

Wide Compatibility: This pool filter cartridge is compatible with Compatible with Clean & Clear Plus 420 (CCP420), Pac Fab Clean & Clear Plus 420, Waterway Crystal Water 425. Replaces Pentair CCP420, 178584, Ultral-A6, Unicel C-7471, 817-0106, Darlly 71053, and more. See images for full compatibility.

Engineered for Accurate Fit: Measures 26 1/16" length × 7" outside diameter, with a 3" top and bottom opening for proper alignment. Filtration area: 105 sq. ft. Please measure your existing pool and spa filter cartridge before ordering.

Premium Trilobal Fabric for Superior Filtration: Our advanced trilobal fabric provides more surface area than standard filter media to capture more dirt and debris while maintaining strong water flow. It also rinses clean more easily, making maintenance faster and helping keep your pool or spa crystal clear.

Designed for Demanding Pool & Spa Environments: This filter for pool & hot tub captures hair, leaves, dust, sand, sunscreen, and body oils. Precision ~50-micron cartridge filtration helps keep water crystal-clear. Durable polyester media is chlorine- and bromine-resistant.

Durable and Reusable Construction: Reinforced end caps and stable pleats in pool filters cartridge withstand repeated cleanings. Chemical-resistant trilobal media offers up to 66% longer life vs. point-bond filters.

IAPMO NSF/ANSI 50 Certified: Rigorously tested to meet strict safety and material standards, this pool water filter helps maintain clean and safe water while safeguarding spa pumps for long-term use.

Heavenly Pool Supplies Replacement spa and swimming pool filters are engineered as a premium drop-in replacement for Darlly 71053 and several equivalent part numbers, delivering durability, precise filtration for crystal-clear water, and easier maintenance. Unlike standard point-bond fabric that clogs easily, our advanced trilobal pleated polyester filter media features a three-lobed design with greater effective surface area and improved contact with water. More commonly used in premium OEM filtration systems, trilobal filters trap up to 40% more debris than standard swimming pool filters. Frequent filter cleanings frustrate many pool and spa owners, which is often the case for users of standard pool filter replacement cartridges. Unlike cheaper media that mats easily and loses performance faster, trilobal media traps dirt within the pleats without allowing impurities to compact on the surface, allowing water to pass through freely. Compatible with most filters for pool pump, this cartridge promotes consistent circulation, reduces stress on your system, and allows longer intervals between cleanings. When it’s time for cleaning, the smooth, rigid pleats rinse effortlessly under a garden hose, reducing maintenance effort and saving time. Built to handle real pool and spa environments, these hot tub filter cartridges capture common debris found in pools and spas, including hair, leaves, sand, dust, leftover sunscreen, and body oils. Thanks to the premium trilobal media of our reusable pool filter cartridges, which offers approximately 50-micron cartridge filtration, water stays visibly cleaner for longer. Under normal use, the nonwoven polyester fabric of our large pool filter cartridge is chemically resistant to chlorine and bromine, making it suitable for many pools and spas. Poor durability is one of the biggest concerns for shoppers of replacement filter cartridges. Unlike standard point bond filters that warp easily, Heavenly Pool Supplies Reusable Pool Filters feature reinforced end caps and engineered pleat stability to help prevent premature wear through repeated cleanings. Designed for reuse, the cartridge is made to withstand regular hose rinsing and chemical exposure. When replacing a worn cartridge or upgrading from standard point-bond filters, this trilobal media replacement offers a smarter balance of filtration efficiency, durability, and ease of ownership. Proudly Made in the USA, Heavenly Pool Supplies Replacement Pool Filter Cartridges are made from premium materials to satisfy users looking for dependable performance, year after year.