2 Pack Grow Tent Vent Duct Filter Covers with Elastic Band and Fixed Buckles, Silver-Coated Oxford and Mesh Cloth for Plant Greenhouses, Fits 4in 6in 8in Openings, Black(4in)

2 Pack Grow Tent Vent Duct Filter Covers with Elastic Band and Fixed Buckles, Silver-Coated Oxford and Mesh Cloth for Plant Greenhouses, Fits 4in 6in 8in Openings, Black(4in)