Unbranded 4 in. x 18 in. Zabel Cartridge Only

The Zabel A1801-4x18 is a 4 in. x 18 in. septic effluent filter cartridge designed to reduce solids leaving the septic tank and help protect the drainfield from clogging. It features Zabel's patented inside-out flow design with 1/16 in. filtration slots, promoting self-cleaning action and longer service intervals between maintenance. This filter is compatible with standard 4 in. outlet tees and Zabel baffle housings, making it a reliable upgrade for residential septic systems.

• Reduces solid waste from entering the sewage system
• Help prevent drainfield damage and reduce maintenance time
• Compatible with standard 4 in. outlet tees