Builders should be able to specify such plumbing products as shutoff valves. In this video, Matt Risinger, master builder, explores the difference between cheap and expensive shutoff valves. After a challenging shutoff valve on a refrigerator that insisted on leaking no matter what, Risinger called on Jordan Smith to cut into three options with a bandsaw.The first shutoff valve was a standard model with a compression fitting. Typically, it features a plastic stem at the top and this model takes several turns to get it to shut off. Once open, the plastic goes all the way down until it meets a rubber gasket and makes contact with the brass, which is actually what is shutting it off. Concerns are that the plastic might shear off eventually and the rubber may fail at some point. Taking a similar shutoff valve, but one that is 20 years old, they see that plastic wasn't used for the stem and the rubber is completely gone. Likely, over time, chlorine in the water broke down the rubber gasket and now it won't shut off. Finally, a ball valve only takes a quarter turn to shut off. There's a ball with a hole in it and when they turn it, it opens up. There is no rubber on this unit but there is a nylon seat that the ball moves in. This one should last much longer than rubber. On a cost basis, it is $7.00 for the compression, $9.00 for the quarter turn., which would be less at a supply house, especially bought in bulk. Even though it may cost another $50 or $60 in the end, it's important to get the quarter turn one for quality and longevity.