The RESCUE! Fly Refill works inside the RESCUE! Reusable Fly Trap to lure common nuisance or filth flies. Each refill packet contains one application that generally lasts two weeks to a month. Just drop the water-soluble lure pouch into the trap jar, add water to the fill line, replace the top, and hang or place the trap outside near a fly source.

This product does not expire.

Our Fly Traps do not use any killing agents or poisons. They rely on luring flies with food and feed-grade ingredients, then trapping the flies until they expire on their own.