Plastic spout plugs are designed to seal the end of a 7/16" diameter spout, or stubby spout, during the off season, so that no insects or other impediments can enter the maple sap tubing system, plugging that system and limiting maple sap production the following year.
COMPACT PLUG: The small red plastic insert plug is very light and it is easy to carry a large supply, so that it is less cumbersome while tapping to remove the spout plugs and carry them out of the woods. Tapered to fit any 7/16" or stubby style spout.
KEY PLUG: A compact, blue plastic spout plug with a round flat end that makes it easy to insert and remove the plug from the end of any 7/16" diameter spout or stubby spout.