Grow1 Standard Carbon Filter, 6" x 32"This filter eliminates 99. 5% of all odors using 100% Virgin Activated Carbon It features a pre installed flange and has a 180 F maximum operating temperature. This lightweight filter has an average life span of 1. 5 years. Activated Carbon inside is what sets our filters apart from the competition. Designed specifically for indoor gardening, our filters will purify the air and eliminate any odors. These high quality filters will provide your plants