Stainless Steel Blank Tips are to be used in place of a regular nozzle tip where you do not currently want the overhead system to spray. The blank tip has no hole for the insecticide to spray from. For example, if you are temporarily converting a stall to storage, you would put in a blank to plug the nozzle, allowing you to later replace it with a functioning tip when you convert it back to a stall.
We use Shoo-Fly for all of our insect problems. They have been a stellar company to work with and produce an exemplary product that provides almost 100% eradication of flying pests.
Melanie and JT Burnley - Wrenwood Dressage