This is my idea of a 4 way switch valve that I always wanted from LEGO.
About this creation
This 4 way valve would be a great thing to use in mods and commercial LEGO pneumatic sets,
because sometimes theres not enough room for 4 ordenary switches.
So I came up width this little baby, it has for outlets so you can attach 2 pneumatic pistons instead of only one.
So give me your credits and/or comments about this one .