Odorless Cypermethrin insecticide is the active ingredient in Cyper WP, Demon WP, Demon EC, Cynoff WP and Cypermethrin EC 4 ounce and Cyper TC liquid concentrate.
Cypermethrin is used as a crack and crevice and/or spot treatment for residual and contact control of ants, carpenter ants, cockroaches, crickets, spiders and certain other insects. This is the most popular insecticide concentrate used in general household pest control. Available in pre-measured water soluble packets, 1 pound bulk jars and liquid concentrates.
Wettable powder concentrates (WP) containing Cypermethrin:
Cyper WP 1 Lb. -- Cyper WP contains 40% Cypermethrin; same as Demon, Cynoff but costs less. Makes 24 to 48 gallons.
Cynoff WP 1 Lb. -- Same as Cyper WP, Demon.
Demon WP 1 Lb. -- Same as Cyper WP
Demon WP packs -- Envelope containing 4 packs; each pack makes one gallon of solution.
Demon Max (aka Demon EC) -- Pint container of Cypermethrin insecticide concentrate
Cynoff EC -- Same as Demon Max in strength. Quart container of Cypermethrin concentrate. Makes up to 64 gallons.
Wettable powder concentrates (WP) are odorless and give a 3 to 6 month residual. Liquid concentrates (EC) are odorless (Cynoff EC) or low odor (Demon EC, Viper, Cyper Eight EC) and give 30 days (or better) residual.