How long does it last after opening

pH-balanced formula is safe for dogs

Handcrafted from soft

Complete with the iconic red logo for authenticity

Prozap DyFly Aerosol Insecticide RX-vaccine How long does it lastProzap DyFly Aerosol Insecticide, 20 oz Prozap DyFly Aerosol Insecticide spray contains 0. 5% Pyrethrins and 5. 0% Piperonyl Butoxide to offer a quick knockdown and killing power. This high performing, synergized aerosol spray is ideal for use on horses, beef and dairy cattle, and hogs. DyFly can be used in stables, barns, food processing areas, houses, milk rooms, and poultry houses. Works on: flies hornets wasps moths gnats ants mosquitoes roaches