Q: Hello, Is the "Moose Valve" compatible with David Nail D 2 Pipes, and is it easy to install?
A: Yes, this will work with Naill pipes. It is easy to install. It does come with instructions as well. The only thing is that it is extremely difficult to use the moose valve in conjunction with a water trap that also fits inside the blowpipe stock. There just isn't enough room for both.