POOLPURE 5CH-512 Spa Filter Cartridge, Compatible with 20690 Marquis Hot Tub Filter, 50 Sq. Ft, 2 Pack

["➤COMPATIBLE MODELS: PoolPure 5CH-512 Spa Filter is compatible with Unicel 5CH-512, Marquis 20690 and other compatible models. ★NOTE: This is a compatible replacement. Original manufacturers' names and part numbers are for reference only. POOLPURE stands as an independent brand.","➤SPECIFICATIONS:Length: 16\"; Outer Dimension: 5 3/16\"; Top: Handle; Bottom: 2\" Male Thread/MPT; Filtration Area: 50 sq. ft; Filter Material: Trilobal Filtration Fabric.","➤NSF/ANSI 50 CERTIFIED: Trusted by 5 million pool owners！POOLPURE Pool and Spa filters proudly carry the NSF/ANSI 50 certification, having been rigorously tested and certified by IAPMO. Trust in POOLPURE to provide crystal-clear, purified water, enhancing your overall pool or spa experience. Dive into unmatched relaxation.","➤SUPERIOR FILTRATION TECHNOLOGY: Our innovative \"Dirt-Locking\" technology ensures the fabric own 3x Debris Capture than standard filters. Filtration precision up to 50 microns, removing 99% of hair, leaves, dust, sediment, sand, and more for a pristine Spa experience.","➤EASY MAINTENANCE: Enhanced grip handle specifically designed for easier installation/removal. Advanced trilobal fibers ensure effortless stain capture and release, simplifying the cleaning process. For optimal performance, it's recommended to clean the cartridges once a month.⚠️ Not for Backwashing – This filter cartridge is not designed for backwashing. Backwashing may cause cracks or permanent damage.","➤EXTENDED LIFESPAN: With 25% thicker filtration fabric compared to standard filters, heavy chlorine-resistant & break-resistant end caps, the filter service life extends by 20-30% compared to normal filter cartridges. We're dedicated to offering top-quality products at an affordable price.","➤PHTA MEMBER – INDUSTRY-TRUSTED PERFORMANCE: As a proud member of the Pool & Hot Tub Alliance, PoolPure follows industry-recognized filtration standards to deliver superior performance, longer lifespan, and consistently crystal-clear water.","➤Proven by Athletes & Media: Tested in real training environments and featuring Olympic swimmer Rhyan White, our filters deliver reliable performance where it matters most—while recognition from NBC Local highlights our commitment to consistent filtration and superior water quality."]