Extend Filter Life with Quality Air Filter Replacement

Maximize the performance of your ventilation system with the Kootenay Filter Pre-Filter GL425S. This air filter replacement efficiently traps larger particles, significantly extending the lifespan of your primary filter. Perfectly sized with a 4-inch flange, 8-inch diameter, and 14-inch length, it's ideally suited for maintaining air purity in grow tents and indoor hydroponic systems.

Simple and Effective Pre-Filter Replacement

Replacing your pre-filter regularly is essential to maintain optimal air quality and effective exhaust filtration. The Kootenay Filter Pre-Filter GL425S ensures easy installation, providing continuous protection and reliable performance for your air filtration system.

Flange: 4″
Diameter: 8″
Length: 14″

Pre-Filter for GL425S with 4″ Flange