Dosage adjusts from 5 ml to 65 ml in 2.5 ml increments. Clear poly barrel is marked with proper pour-on cattle wormer dosage up to 1430 lbs. Anti-splash nozzle reduces waste. The Dectomax Pour-On Gun comes with pour-on nozzle and 5' draw off tubing.
Dectomax applicators fit 2.5 lt or 5 lt jugs.