Here is the Brand New 4" Heavy Duty Metal Clamp. Adjustable duct clamps keep all the connections in place. With the simple twist of the screwdriver, you can loosen or tighten these clamps easily. Once the duct hose is properly placed, align the clamp over the area that fits around the flange, then tighten snugly. Duct Clamps guarantee a secure fit to your fans and ducting.
Brand new and ready to ship
4 pieces (two pairs)
4" hose / worm / duct clamp
Construction with heavy duty metal
Max diameter: 4.5"(114mm)
Min diameter: 3.6"(91mm)
Super tough and easy to use
Ideal for 4" diameter ducting or hoses
More secure and better than duct tape or cheap wire clamps
Easily loosen or tighten the clamp with a simple twist of a screwdriver
Perfect for attaching ducting and fans for air cooling your grow light reflector or grow room.