Vent Systems8" inch Air Vent Duct Connector Flange Straight Ventilation Pipe Metal Ducting Connector Plate For Cooling Heating Ventilation System HVAC 8" inch - Pack of (1)

Exactly what I needed

This 10inch collar is very poorly made as far as duct takeoff . Thought the other bad reviews were just from people not used to doing duct work.Being a Pas HVAC contractor and doing thousands of duct systems, pass on this poorly made take off collar. It barely has a flange to secure it to the trunk duck work. Barely enough to get zip screws in and even then barely enough to try to seal it with metal tape to keep from leaking.It has maybe 1/4 inch flange to secure to duct on 10" and the roll process they use to make it cause it to not mount flush to duct with the small flange.You end up having to hand punch screw holes every 2" to get it to draw flush so you can then use metal tape to keep it from leaking air. Pass on this and get proper duct tappin from proper manufactures.Will not be using these ever again and glad I only ordered a single 10 inch. Gave them a try thinking it was others not knowing how to install duct but it is clearly the manufacturing doesn't know how to make them.

The picture doesn't exactly fit what comes in the mail. There aren't any pre-bored holes as descriptions says, no big deal I'm drilling my own anyways. But the flanges aren't as big as what is pictured so be prepared to work with that. The flange for mounting it to a flat surface is the problem, it only offers 1/2" of area for mounting.

It is misrepresented it does not fit 4 inch ductwork such as dryer vents bathroom exhaust fansIt is 3 3/4” It does not have pre drilled holes as advertised. It’s not worth my time returning it for $9.99. But hopefully you will do a better job representing your product in the future.

Flange is not as shown. Only about 1/4 inch.