McCallum Split Stock Water Trap with Alloy Ferrule This McCallum Split Stock Water Trap has an alloy ferrule to coordinate with pipe styles that have metal ferrules. It's ideal for use with hide and sheepskin bags that don't have a zipper access. The tube can be removed and replaced through the stock. The split stock will need to be tied in in place of your current blowpipe stock. Made by McCallum, it's compatible with other makes of bagpipes.
