Kootenay Filter Pre-Filter 800GL | Air Filter Replacement cables Set the day and night

Set the day and night temperatures once and it runs hands-free through the cycle

pH Up does not contain any harmful materials and provides consistent results

Temperature high alarm can prevent nutrient dosing

Made of anti-corrosive and rust-proof materials

Kootenay Filter Pre-Filter 800GL | Air Filter Replacement cables Set the day and nightDurable Air Filter Replacement for Maximum Efficiency The Kootenay Filter Pre Filter 800GL is engineered to prolong the life of your filtration system by trapping larger particles before they reach your main carbon filter. Ideal for use in hydroponic setups and grow rooms, this pre filter features a 6 flange and fits snugly over 12 diameter filters, with a 13 length for full coverage. It helps maintain peak airflow and odor control efficiency, making