Demon WP Insecticide 1 Envelope Containing 4 Water-Soluble 9.5 Gram Packets Makes 4 Gallons Cypermethrin 40%
Condition: New
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FREE refund/replacement until Jan 31, 2026
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Availability:
In Stock.
Arrives
Monday, Feb 2
Features
- General Surface, Crack and crevice and/or spot treatment for residual and contact control of ants.
- Works great on cockroaches, Crickets and spiders
- Commercial use on and around buildings and structures.
Description
Demon WP
Item Form: Pellets
Item Weight: 0.11 Pounds
Liquid Volume: 4 Gallons
Active Ingredients: Cypermethrin
Brand: Syngenta
Item Form: Pellets
Item Weight: 0.11 Pounds
Liquid Volume: 4 Gallons
Active Ingredients: Cypermethrin
Brand: Syngenta
Target Species: Insects
Product Dimensions: 4.95 x 5.25 x 1.8 inches
Item Weight: 1.76 ounces
Manufacturer: Syngenta
Item model number: 4316247480
Is Discontinued By Manufacturer: No
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Feb 2
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
So easy to use and so effective. Dead bugs on their back next day. Lots of them.
Reviewed in the United States on December 17, 2025 by NEF
I was having problems with ants. It’s like they were getting in everywhere but specifically in my bathroom a girl I worked with told me about this stuff. She said I’ll get my husband to come spray it for you. I said great. I had a sprayer I bought the stuff he came and sprayed it. The one thing you have to be sure that it’s not wet outside and it hasn’t been raining. It has to be dry as long as it’s dry. You spray this everywhere outside he could see everywhere where I needed it but he sprayed everywhere not only does it kill ants. It will kill anything roaches ticks fleas termites. Anything this stuff is wonderful. He sprayed it all under my house all around my house. I live in the country. There are fills everywhere so he sprayed it all around my house and then he went in and sprayed it in my house, it works awesome you don’t need a bug man anymore. If you have this stuff, it works !! no more ants have not seen any ants, not only didn’t kill him outside, but it killed him inside. That’s why it counts. I think you definitely get your moneys worth no doubt about it. I like it so much. I bought some from my uncles house and a sprayer he has ants really bad at his house. I’ve been spraying all outside next. I’m gonna get inside just to be sure there are no critters around! Stop paying those pest control people and buy this and Do it yourself you will save a lot of money!!
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Reviewed in the United States on October 13, 2025 by Linda
This is all I need for keeping those pests outside. One envelope equals a gallon and I spray it all around my house outside and then inside I put it where my window seals are. No bugs in my house as they don't pay rent. Great quality easy application and it is effective.
Reviewed in the United States on December 22, 2025 by Kendra Connelly-little
This is going to kill all the bugs in your house. I don't usually see many insects in my house, but the first time used this I started seeing dead insects all over the place. It lasts a long time, and I can't imagine using anything else for routine pest control. The only downside is you have to make a minimum of one gallon at a time and you cannot store the leftover prepared mix for more than a day or two before it loses its effectiveness.
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Reviewed in the United States on December 6, 2025 by Aggie Noel
Worked great,easy to use
Reviewed in the United States on November 26, 2025 by Amazon Customer
I Wore Long Sleeves & Long Rubber Gloves But Still Ended Up With Burns & Irritation On My Arms From Litter Droplets That Got On My Sleeves But It Was Worth It! The Product Did Leave A Off White Cast Where Applied, So Keep That In Mind But The Way It Killed Everything Seemingly Instantly & I Haven’t Seen Any Live Creepy Crawlers Since I Sprayed Months Ago. It’s Well Worth The Buy!
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Reviewed in the United States on November 9, 2025 by Webb
great to kill insects
Reviewed in the United States on November 21, 2025 by angel l hernandez
Very good. Friend had a roach infestation and had tried everything. Didn't help. This helped get rid of the roaches. Ease of use, safe, no smell really.
Reviewed in the United States on November 3, 2025 by Lanetta Fleming