Kootenay Filter Pre-Filter 330SL

Enhance Indoor Air Quality with Reliable Pre-Filters Maintain optimal indoor air quality effortlessly with the Kootenay Filter Pre-Filter 330SL. Engineered specifically as a replacement pre-filter for the SL330 model without flange, it captures and blocks larger particulates, significantly extending your main filter's lifespan. Available with versatile 4″ and 6″ flange options, this pre-filter measures 12 inches in diameter and 13 inches in length, making it easy to integrate into existing ventilation systems. Ideal for maintaining air flow and reducing maintenance costs, this air filter replacement ensures continuous filtration efficiency and consistent indoor air quality. Possible Flanges: 4″ / 6″ Diameter: 12″ Length: 13″ Pre-Filter for SL330 Without Flange