Kootenay Pre-Filter 660SL | Air Filter Replacement

Improve Air Quality with Kootenay Pre-Filter 660SL The Kootenay Filter Pre-Filter 660SL is a high-quality replacement filter designed to protect your carbon filter and ventilation system by capturing large airborne particles before they reach the core filter. Its 12″ diameter and 26″ length ensure a snug fit for the SL660 model without flange, making it a vital component in maintaining indoor air quality and maximizing the lifespan of your air filter system. Whether you're managing airflow in a grow room, HVAC setup, or industrial space, this pre-filter enhances efficiency and helps maintain clean air circulation. Compatible with 6″, 8″, or 10″ flange sizes, it seamlessly supports your air purification goals. Possible Flanges: 6″ / 8″ / 10″ Diameter: 12″ Length: 26″ Pre-Filter for SL660 Without Flange