GrowLab GL290 Grow Tent | 9ft 6in Square, No View Windows

The GrowLab 290 and What It Leaves Out

The GrowLab GL290 leaves out something the rest of the line carries. Most models in this line carry clear viewing windows that let you check a canopy without breaking the seal. This particular model does not have them. Every look inside means opening a zip on a 9ft 6in square enclosure. Temperature and humidity both move the moment you do it. The rest follows the range. Interior height is 6ft 7in and the roof cross-members carry 100 lb. The frame is powder coated steel and the lining is silver Mylar over a removable waterproof floor. Tent fabric reflects 97 percent of radiant heat. Boxed weight is 83 lb, the heaviest in the line, and the panels are correspondingly large to handle during a build.

Living With a Grow Room Tent at This Footprint

Ninety square feet of floor inside a fabric enclosure behaves like a small room, and it needs to be treated as one. Monitoring is where the missing windows actually bite. With no way to look in, sensors stop being a convenience and become the only thing reporting between checks. Put a temperature and humidity probe at canopy height and another near the floor, and read them rather than guessing. The roof rating has not grown with the footprint, so lights and filters across this span want independent support from the ceiling above. Assembly deserves two people and a clear floor, because the panels are unwieldy on their own even before the frame is up. The honest position is that anyone with the option of framing and sealing a real room should do that instead. This tent exists for a leased space, a warehouse bay, anywhere a permanent build is not allowed. It does that job well enough to be worth the compromises.

Key Features

• No viewing windows: Unlike most models in this line, the panels have no clear windows
• Footprint: 9ft 6in square, the largest in the range
• Height: 6ft 7in of interior height to work with
• Shipping weight: 83 lb boxed, the heaviest in the line
• Interior: A silver Mylar lining that is highly reflective and waterproof
• Thermal: The tent material reflects 97 percent of all radiant heat
• Frame: Powder coated steel, thicker than the previous generation and rust resistant
• Cross-members: Movable, snapping into place so a fixture can be repositioned
• Ports: Multiple intake and exhaust ports with adjustable ducting attachments
• Floor: A removable waterproof second floor, lifted out for cleaning between crops

Technical Specifications