Description: Cylindrical activated carbon air filter Specifications: Product size :4 inches: 30*17.7cm/11.8*6.97in 6 inches: 40.5*22.7cm/15.94*8.93in Packing size :4 inches: 22.5*22.5*34.5cm/8.9*83.9*13.6in 6 inches: 26.5*26.5*44.5cm/10.4*10.4*17.5in Product weight :4 inch single gross weight 2000g/6 inch single gross weight 4000g The inner diameter of the product; 4 inch filter inner diameter 100mm, outer diameter 176mm, 6 inch filter inner diameter 150mm, outer diameter 266mm, Product introduction 1. Multi-size options: Provide 4 inch and 6 inch two size options, suitable for different sizes of hydroponic plant tents, to meet different planting needs. 2. Cylindrical design: The cylindrical design is easy to install inside the plant tent, saving space, effectively purifying the air, and providing a good growing environment. 3. Activated carbon filter: It is equipped with high efficiency activated carbon filter, which can effectively remove odor, pollutants and harmful gases in the air and keep the air fresh. 4. Efficient filtration: with excellent filtration effect, it can absorb most of the particulate matter and harmful substances in the air, protect plant growth and improve production. 5. Long-term use: and wear-resistant, the activated carbon filter can be repeatedly cleaned and replaced to ensure long-term effective air filtration and provide a pure environment for the healthy growth of plants. Product features: Designed for growing tents and hydroponic rooms to eliminate odors and chemicals. High quality Australian charcoal with higher adsorption and longer service life Contains heavy duty stainless steel flanges, aluminum mesh, and flat head pre-filter Includes: Filter + white cotton filter sleeve (without lanyard)