Zenprox Aerosol- Zenprox Aerosol is labeled for both indoor and outdoor use and as a spot or crack and crevice treatment. This aerosol is great on bed bugs, roaches, and more. Zenprox Aerosol provides quick killing action with a 360 degree valve and ergonomic actuator. This product is a contact kill aerosol and is not meant to leave a long term residual. Packaged in 16oz cans.