If you use the Champion 1/2 Acre Mosquito Trap or Guardian 1-Acre Mosquito Trap (both sold separately) to lure mosquitoes away from your family, now you can extend the life of your insect-killing trap. While these pest-control units come with an Octenol cartridge that entices potential West-Nile carrying bugs away to their deaths, the cartridge will need to be replaced occasionally. This set comes with two additional Octenal Refills as well as an S-hook to attach one cartridge to your Mosquito Trap. The traps are sold separately. Each Octenol cartridge emits a scent that attracts flying insects. If used constantly, the cartridges should be replaced every 21 days.

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