The 4’x4’ Walden Grow Tent is designed to give professional home growers a tent that meets their needs in both function and form. All Walden Grow Tents are manufactured using industrial-strength zippers and 100% EcoWhite PEVA material. This toxin-free material creates a clean look for a grow space and emits no hazardous chemical gases, allowing these tents to be safely placed in communal settings without posing any health risks to friends or family. 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. The double-wide front doors give growers easy access to plants and the large rollup side doors let growers get to even the hardest to reach areas. The Infinity View front windows (18”x31”) help growers observe and assess their entire garden without disturbing humidity or temperature. Setup is quick and simple with the tent’s solid locking metal frame, sturdy connector pieces and tool-less installation. Each 4’x4’ Walden Tent comes with five 8” ducting ports, two 4” electrical ports, three roll-up mesh air vents, two fan/filter straps, a mesh tool bag, a removable spill tray and an industry-leading 2-year warranty. See Item 41904 for ventilation kit.