The 40″ Empty Cartridge Filter is a refillable inline filter shell designed for custom media and pre-filtration applications. Commonly used in softwash systems, chemical delivery setups, and reverse osmosis pre-filters, this cartridge allows you to load your own filtration media such as activated carbon, resin, KDF, or sediment beads. Built from high-grade polypropylene, this cartridge is compatible with standard 40-inch filter housings and is pressure-rated for water, bleach, and chemical use when paired with the proper housing. Key Features: Length: 40″ standard Type: Empty refillable cartridge Material: Durable polypropylene construction End Caps: Sealed with rubber gaskets for leak-proof installation Compatibility: Fits standard 2.5" x 40" cartridge housings Applications: Softwash filtration Bleach or surfactant filtration Custom media (carbon, KDF, resin) Pre-RO water filtration Reusable: Clean and reload as needed Operating Pressure: ~60–100 PSI (housing dependent) Temperature Rating: Up to ~125°F Specifications: Model: Empty Cartridge – 40" Size: 2.5" OD x 40" length Construction: Polypropylene body with end gaskets Weight (Empty): Approx. 1 lb Max Flow Rate: Depends on media and housing – typically 4–10 GPM Seal Type: Double O-ring or flat gasket (varies by batch) Color: White or translucent (varies by supplier) Media Fill Type: DIY (not included) This is NOT the replacement DI cartridge for the 4060 system. The correct replacement DI filter for the 4060 is the 4 X 30" FILTER CARTRIDGE - DI RESIN
