Empty Refillable Filter Cartridge 20" x 4.25" BB Large Diameter for Water Treatment, Reverse Osmosis, De-Ionising Resin, Filtration Media & Aquatics

• UNIVERSAL SIZING: Suits all standard 20" x 4.25" filter cartridge housings
• REFILLABLE: Screw top design enables the cartridge to be re-used
• VERSATILE: Can be used with your choice of filtration media

Empty Refillable Water Filter Cartridge 20" x 4.25" (Large Diameter) These Refillable Water Filter Cartridges are supplied empty and are suitable for use with a wide range of water treatment resins and media (such as DI resin, softening resin and granular carbon). Popular for use within drinking water, window cleaning and aquatics applications, these cartridges can be emptied, refilled and re-used multiple times. Compatible with all large diameter (BB) filter housings (20" length x 4.25" diameter) and supplied with anti migration pads.