The Moose Valve is the Worlds first bagpipe non return valve suitable for every bagpipe set up since the original flap valve. It combines a non-restrictive flow and efficient water trap.
It installs in the blowpipe stock, not on the blowpipe itself.
It can be used in any type of bag set up and is fully adjustable from 3/4" - 7/8". Fits internal tapered bores with no requirement to ream or drill stock
The moose valve is 32mm in length.