Customer Reviews for Fernco 3 in. x 3 in. PVC DWV Mechanical Flexible Coupling

Put a pair of these in to install a radon fan into a passive radon system. Fit the 3 inch pipe and 4 inch fan fittings perfectly. Easy to slide on the pipes and the clamps hold firmly.

This fits PVC pipe securely and does what it’s supposed to do.

This saved me so much time. The prior plumber/homebuilder did not have the main sewer line in line with the hole in the side of the foundation. Using this saved me from chipping away at the concrete to get the pipes to line up. It was easy to install and tighten down. I was able to get it so that it does not leak. Highly recommend.

These rubber couplings fit perfectly and do and excellent job. To replace all existing drain lines to the nearest point to make glued joints would have taken many hours and grater expense. For under $10 I saved hundreds and have a joint I can trust and depend on.

Its clealry marked as 4”. It is very much 5”. Luckily I live close to store but still a huge annoyance and waste of my time. I don’t often need parts like this. Is this some sort of twisted “normal” industry standard of measurement? Like a 2x4 NOT actually being 2x4?

Used this to connect a gutter cleaning kit to my Ryobi leaf blower.

These worked exactly the way I needed them to. I was worried that they’d be too tight when I slid them on so that I’d have a rough time of it, but they were just slightly larger and slid onto my old drain pipe without much effort. Highly recommended. Sure beats smelly glue and primer!

Easy to install & Works great

I have a 42" flagpole and I used this item to cushion the pole in its' mounting bracket. The straps were useful to hold it in place whilst I tightened down the bracket.

worked well for my SaniFlow toilet. From the back of the toilet to the pump unit.

Product worked as required.

Very convenient and easy to install

This was the correct Product for the needed repair.

Great product. This allowed me to cut a vent stack in my attic to investigate a problem and then put the pipe back together without needing glue or a standard collar. It will also allow me access again at a later time if necessary.

Had to use between a stack pipe and a elbow up to the toilet flange. Gave me just a bit of wiggle room for mounting the flange once the subfloor was laid over the top and access to the lines was no longer possible. Used real Fernco's for years, never have issues

Worked great easy to install

Charlotte pipe and fittings are Top Notch, Never a problem

Been using them for 40 years great solutions for tough situations

Works very well. Gives you a little flexibility at the joint if needed. Clamps easy to adjust.

Couples pipe just like it says..

Great fixable connection