Sy. 417AA 4" Internal Coupling

Joined PVC to black flex. Worked great.

This is the coupler to buy. Locks and stays put. Not 100% watertight, without caulk, but more than close enough for my purposes of connecting and disconnecting drainage to it the seasons. I tried a cheaper one that is worthless.

I ordered the product three days ago and it arrived on time, but is not the product shown. The ADS item number is correct, but it is not what is pictured. The product number was actually changed from the time that I ordered, but the picture was not updated. It originally was a NDS item, not a ADS product. The 417AA is a great coupler, I use them all the time. I needed the longer coupler with the additional space in the middle as shown. The 417AA is shorter. A word to the reviewers complaining about the coupler not being watertight. No fitting for corrugated pipe is watertight. This is not a sewer line, but very simple drainage line for storm drainage in the landscape. If you want something watertight, you are in the wrong product line. The item is 5 star, but the incorrect picture is misleading and caused a delay in my project while finding the correct product elsewhere.

These allowed me to replace a section of buried drain line that got exposed and damaged. These hold the sections tightly, so pulling apart can be difficult. That's a good thing in my opinion for this kind of product.

Wrong size plus if you have to return it plan on paying $5 for shipping

Great

These work great

For splicing drain tile, but dont forget PCV tape or it will leak.