The 3-Tier Walden Grow Tent was designed from the ground up for professional plant hobbyists that want to get out of growing in dark basements and proudly share their passion. The sturdy, adjustable shelving system provides growers with 24 ft of grow space in a controlled environment. Each 3-Tier Walden Grow Tent comes with three 47.5"x24" shelves (assembly required), five 6" ducting ports, two 4" electrical ports, three roll-up mesh air vents, two fan/filter straps, a removable spill tray and installation guide. Grow tent measures 49.21″ L x26.77″ W x70.87″ H. Adjustable 3-Tier Shelving System 3 sturdy shelves (47.5"x24") provide up to 32 ft of grow space and support up to 45 lbs. each. Easily adjust shelf heights to meet target lighting requirements for different plants. Shelves can also be removed if a taller grow space is needed. EcoWhite PEVA – Triple Layered All Walden Grow Tents are manufactured using industrial-strength zippers and 100% EcoWhite PEVA material. The toxin-free material creates a safe, stylish and easy to clean growing area that keeps insects and other pests out. The triple-layer design is composed of a 600D canvas exterior, a vinyl light-blocking center and a white vinyl interior that is 10% more reflective than even the most reflective mylar tents. Double-wide Front Doors Double-wide front doors allow growers easy access to plants or to put them on full display. Extra-large front viewing windows (18.5"x50") let growers check on plants without disturbing humidity or temperature. Window covers roll back and secure with velcro straps. Light-blocking Zipper Covers Each tent comes with two large light-blocking zipper covers to prevent light leakage at zipper junctions. Solid Locking Frame Setup is quick and simple with the tent’s solid locking metal frame, sturdy connector pieces and tool-less installation. Roof support poles can hold up to 110 lbs. 2-year Warranty All tents come with an industry-leading 2-year manufacturer’s warranty.