Zon mark 4 propane cannon review
Review of the Zon mark 4 propane cannon The Zon mark 4 propane cannon is an automatic Propane Scarecrow that Uses Sonic Blasts to scare and deter Birds Away from Crops. The Zon mark 4 propane cannon have been in use for the last 50 years. It has been an effective device trusted mostly by agriculturists, …