87971 Square Ice Maker Outlet Box with Quarter-Turn Brass Valve - 1/2-Inch CPVC Connection, White Plastic - Perfect for Refrigerator Water Supply Lines & Under Sink Installations

Excellent valve/box combination. One note on installation, I did not install it as shown in the picture with the outlet straight out. The connection ends up terminating flush to the wall. This seems OK until you figure in pushing the fridge back almost to the wall. I angled the valve about 45 degrees to the left to facilitate the hose coming out of the valve. This also allowed better access to the valve lever which was kinda hard to get to when the valve was mounted as shown in the picture. As far as using a threaded connection you can't. There are several different types of threads in plumbing and this one does not use the necessary National Pipe Thread (NPT) which is a tapered thread necessary for the proper seal of the connection. Although you could kludge something and make it so it won't leak that's asking for trouble for something mounted in a wall. Sweating the pipe on isn't too difficult if you use a wet rag over the pipe near the plastic parts and use a high heat torch. I used a street elbow to a short piece of copper pipe to the proper male NPT thread to a pex female 90 to run up the wall to the ceiling (only options available at the big box store.) The arrestor works as advertized and the fridge no longer makes the pipes bang.