4 Inch Schedule 40 PVC Adapter

Sturdy and worth it

Worked great attaching the 4" drain pipe to the box. System is very heavy duty and will last for quite a long time.

Decent product, could be a little better.

This coupler part was fine. Other issues that engineering should check- screws for grates on stainless steel rub on the vein. I replaced with socket head cap screws. They also need to be longer so you can unscrew them by hand/fingers. I used 50mm. The grate on the sand trap, when cut can cause the supports to come loose. The supports are only welded on one side and should be both. There is no end cap option for inline sand trap so I had to cut a regular end cap to modify to fit. The grate supports are loose- they fall into the drain when you unscrew them. The part could be modified to not do that. Used a router with a bearing to open the basing opening, that worked perfect. I would change the adhesive to black if you can. As a product designer, I usually charge for the advice.

Very well made.