About This

• 【NSF/ANSI 50 CERTIFIED】 TOREAD Pool and Spa filter has been rigorously tested and certified by IAPMO against NSF/ANSI 50, ensuring safe material usage. With a precision of 50 microns, our filter effectively removes hair, leaves, dust, sediment, sand, and other fine particles.
• 【SPECIFICATIONS】 Length: 6 5/8"; Outer Dimension: 5"; Top: 2 1/8"open; Bottom: 2 1/8" open; Filtration Area: 50 sq. ft; Filter Material: Trilobal Filtration Fabric.
• 【REPLACEMENT MODELS】TOREAD TRF-4405 filter compatible PRB25SF PAIR, Unicel C-4405,Marquis 20342, Filbur FC-2387,R172464, APCC7062, CMP 25392-000-100, 17-2464. NOTE: This is a compatible spare part and the manufacturers' names and part numbers have been used for reference purposes only. TOREAD is an independent brand.
• 【REINFORCEMENT STRUCTURE】 This filter features a filtration fabric that is 25% thicker for superior contaminant capture, exceptional resistance to heavy chlorine exposure, and break-resistant end caps paired with a reinforced center support. This robust construction ensures high-powered water flow, delivers crystal-clear water quality, and enhances overall durability—providing you with a reliably clean, healthy, and relaxing spa experience.
• 【MORE EFFICIENT FILTRATION AREA】Uniformity and high-performance trilobal fabric has 21-40% higher capacity compared with common point-bond fabric. The trilobal shape of fabric fibers also helps catch particles, increases efficiency without the pressure drop penalty, and helps reduce filter cleaning frequency.
• ⚠️ Not for Backwashing – This filter cartridge is not designed for backwashing. Backwashing may cause cracks or permanent damage.