Kootenay Filter Pre-Filter 3500GL

Extend Your Air Filter's Life with Quality Pre-Filters The Kootenay Filter Pre-Filter 3500GL with a 14-inch flange is specifically designed for GL3500 filtration systems. By effectively blocking larger particulates, this pre-filter significantly extends your main filter's lifespan and reduces frequent maintenance needs. Reliable Pre-Filter Replacement for Optimal Air Quality Ideal for environments demanding robust filtration solutions, this pre-filter supports efficient ventilation systems, helping maintain high air quality standards. Its substantial dimensions (18" diameter by 39" length) ensure maximum filtration efficiency, reducing system strain and enhancing overall performance. A vital component for any HVAC and ventilation setup, ensuring your air filter replacement schedule remains manageable and cost-effective. Flange: 14″ Diameter: 18″ Length: 39″ Pre-Filter for GL3500 with 14″ Flange