POOLPURE PLFPRB25-IN Hot Tub Filter Replace Unicel C-4326, Guardian 413-106, Filbur FC-2375, FC-2370, 3005845, 17-2327, 100586, 33521, 25392, 817-2500, 5X13 Drop in Spa Filter 1 Pack

• 🍀Specifications: Length: 13 5/16”; Outside Diameter: 5”; Top Hole: 2 1/8”; Bottom Hole: 2 1/8”; Filtration Area: 25 Sq.ft; Filter Material: Trilobal Filtration Fabric.

• 🍀Compatible Models: PLFPRB25-IN Pool Filter is compatible with PRB25-IN, Unicel C-4326, Filbur FC-2375, FC-2370, SD-00196, 303909, M-4326, 8172500, R173429. ★NOTE: This is a compatible replacement. Original manufacturers' names and part numbers are for reference only. POOLPURE stands as an independent brand.

• 🍀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.

• 🍀 NSF/ANSI 50 Certified Safety: PoolPure pool and spa filters are tested and certified by IAPMO against NSF/ANSI 50 standards for material safety. All components are proven safe for long-term water exposure, ensuring no harmful substances are released. Trusted by over 5 million pool owners, PoolPure delivers cleaner, safer pool and spa water for your family.

• 🍀Trilobal Filtration Fabric Design: The innovative trilobal fiber structure provides three times the adsorption surface area compared to conventional filter fabrics. It captures more dirt and sediment while maintaining consistent water clarity, even under frequent use—so you can enjoy crystal-clear water all day long.

• 🍀Patented Dirt-Locking Technology: Our exclusive dirt-locking structure efficiently captures debris and makes cleaning effortless. During rinsing, trapped dirt is released easily and thoroughly. The filter is simple to rinse, reusable, and significantly reduces both maintenance time and costs.

• 🍀50-Micron Fine Filtration: Upgraded with a 50-micron high-efficiency filtration layer, it effectively removes up to 99% of fine particles such as hair, leaves, dust, and sand. It keeps pool water sparkling clear for longer, reducing the need for frequent water changes and chemical use—saving you both time and money.

• 🍀Durable Heavy-Duty Construction: Made with 4 oz. thickened polyester filter fabric, reinforced ABS end caps, and a strengthened integrated core, this filter lasts over 30% longer than standard cartridges. It reduces replacement frequency and long-term maintenance costs, delivering greater value over time.