Serves as the "ammo" for your Skeeter Defeater Dispenser The Cylinder Refill Unit (CRU) serves as the "ammo" for your Skeeter Defeater™ Dispenser, and is sold separately. It contains pyrethrin, a botanical insecticide that kills mosquitoes on contact. The CRU is designed to work exclusively with the Skeeter Defeater Dispenser; no other insecticide containers will fit into the Spray Head of the Skeeter Defeater and work properly.

The CRU comes with a spray button and can be used apart from the Dispenser to spray outdoor areas by hand. It is necessary to remove this spray button before inserting the CRU into the Dispenser. Each CRU contains enough insecticide for 66 sprays, which will last 33 days when your Dispenser is set to spray daily at dusk and dawn, as recommended.

- Kills mosquitoes on contact

- Lasts 33 days when used as directed