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Availability:
In Stock.
Arrives
Friday, May 29
Features
- No fabrics in this product
- Imported
- Note: The "REL" before the month and year stands for the "release" or production date. This product does not have an expiration, "use by", or stated shelf life. Under normal storage conditions, this product will remain effective for 3 to 5 years
Description
Demon Max provides quick knockdown and long-lasting residual control of over 30 types of insect pests. Use Demon Max for crack and crevice and spot treatments; in, on, and around structures and buildings; on lawns, turf, vegetation, and soil; surrounding and under building foundations. Because of its effectiveness in controlling a broad spectrum of insects and its label to be applied in a number of different areas Demon Max is a widely used and economical choice for pest control.
Item Form: Liquid
Item Weight: 1 Pounds
Liquid Volume: 16 Fluid Ounces
Active Ingredients: Cypermethrin (+-)A-Cyano-(3-Phenoxyphenyl) Methyl(+-)-Cis, Trans-3-(2,2-Dichloroethenyl)-2,2-Dimethylcyclopropanecarboxylate* See more
Brand: Demon Max
Brand Name: Demon Max
UPC: 702941250000 070294125000
Part Number: Demon Max -
Model Number: Demon Max -
Item Type Name: Syngenta Demon Max Insecticide, Yellowish
Unit Count: 16.0 Ounce
Included Components: Demon Max -
Manufacturer: Demon Max
Item Form: Liquid
Target Species: Insects
Item Weight: 1 Pounds
Liquid Volume: 16 Fluid Ounces
Active Ingredients: Cypermethrin (+-)A-Cyano-(3-Phenoxyphenyl) Methyl(+-)-Cis, Trans-3-(2,2-Dichloroethenyl)-2,2-Dimethylcyclopropanecarboxylate*
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, May 29
This item is non-returnable:
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
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Top Amazon Reviews
This is by far the best insecticide that I have ever used. Last very long
Reviewed in the United States on March 24, 2026 by Nicole
Found out after seeing a bark scorpion by our front door and grabbing a black light at night that we had a significant issue at the place we were renting. Toddler at home and pregnant wife …the last thing i wanted was to have a bark scorpion get inside and sting one of them. I had also stomped on a few trying to get in through the front door to make matters worse. The time for war had come commmence operation . I called a friend of mine who used to work in pest control on the best measure to handle them.. he recommended demonex. I got the spray pump canister ready that I had purchased..put on long rubber gloves and he’s a respirator system because it is toxic stuff be sure to cover your body and if any gets on you especially skin even a small amount of the mixture you need to wash heavily with warm water and soap for 20 mins.. so make sure to plan accordingly and protect yourself before using this. In other words using demonex to kill scorpions wearing your pool Speedos is not recommended. I was told to create a barrier up about 5 feet onto the house and out about 3 feet down onto the ground surface.. I used double potency because these are scorpions and these land lobsters have been around for quite some time for a reason .. it ain’t because they die easily. Went with double the potency mixed the tank.. and walked backwards spraying the border along the house and base of the outside floor perimeter surrounding it.. while also black lighting and hosing down every single nefarious scorpion that glowed in my way.. which was plenty. Upon hitting the scorpions they immediately were deleted and yeeted.. I went around the house walking backwards while spraying and then killing anything around the perimeter that glowed in the dark. (Scorpions light up like a glow stick when using a black light at. Night) . Went around the front of the house and killed at least one panzer division of scorpions..while sounding like darth Vader using in my respirator. I proceeded around all areas of the houses perimeter and systematically destroyed my enemy scorpions. I was the Rhodesian republic they were communist insurgent scorpions (in my mind). The victory was so glorious that I am proud to say operation neutralize Arizona bark Scorpion land lobsters was more than a success it was like Agincourt they were the French …the scorpions didn’t show back up for the remainder of my time there. This demonex seriously works.. it is potent stuff be very careful making the mixture and using the pump that you do not accidentally release pressure and allow any of it to escape out and get anywhere it shouldn’t. It immediately suffocated the biggest dam bark scorpion I’ve ever seen in my life which happened to be having a hippie jam festival with his smaller putrid land lobster friends right by my front door on a pillar. Goodbye! . This will take care of your issues.. just spray accordingly create a barrier and walk backwards as you spray up and down on the side of the house and then then the base of rhe house on the ground. It doesn’t smell great at all why would it? Don’t smell it !? it’s a very effective class c pesticide so make sure nobody kids or dogs get outside for a solid 2.5 hours after spraying and if they do get in and out fast and avoid hanging around the barrier… great value for the money.. one can fully treat their entire house for not just scorpions bu all pests doing this method to keep them away and to also handle a problem. Again, Do wear protective gear it is toxic after spraying it is a seriously effective pesticide so again keep that in mind. If it’s any help as well.. you can also apply natural diamatreous earth, the powder into the corners that the putrid land lobster scorpions tend to get through. This stuff dries them out and also repels them and this is a natural way to add to your defense. You cannot go wrong with this demonex pesticide but just make sure you realize you are not handling windex or simple green… if ANY gets on your skin immediately stop and go to soap and warm water scrub the skin for a solid 20 mins that is how careful you need to be. This will be an effective battle strategy to win whatever pests you may be facing and to create a force field around your home. Take care. 100% recommend.
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Reviewed in the United States on March 18, 2025 by tclfc777
It’s stronger smelling than some. I wouldn’t spray it indoors. Also, turn off your ac or close windows if you spray near them. We rotate each spray of the summer, but we definatley had more dead bugs with demon max.
Reviewed in the United States on March 10, 2026 by Haus
Really Works! We have tried everything to kill the german cockroaches and beetles that have moved into our clean kitchen & bathroom. I made a mixture of vinegar which they didn’t like but didn't kill the source. I tried minty oil spray which didn’t kill them.tried fogging the house. Then we were told about this, we put it in the kitchen baseboards, cabinets, counters at that back near the walls, bathroom and it WORKED! In 3 days the roaches came out half dead, easy to catch and alot dead! Don’t waste your time or money on the other products. This works!!
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Reviewed in the United States on January 24, 2026 by Katrina
It’s works and kill bugs sometimes within minutes. I had to increase the dosage with water to work. Very easy to use
Reviewed in the United States on August 18, 2025 by Tanisha Speer
I have sworn by this stuff since 1993. Back then, I lived in a 90-year-old apartment in Tampa that appeared to be held together by duct tape, despair, and roaches the size of puppies. There was a gap between the tops of the walls and the ceiling, and these monsters would crawl out of it and surf down the walls. The landlord was useless, so I went to a Do-It-Yourself Pest Control store and received the single best piece of advice I’ve ever gotten from another human being: “You need Demon.” The wise man behind the counter told me it would kill roaches instantly. He casually added that I might see them “raining down the walls and dying before they hit the floor.” He did not exaggerate. I read every warning label like I was studying for the bar exam. Even though it was 98 degrees outside, I geared up in jeans, boots, a long-sleeved flannel, gloves, baseball hat, goggles, and a bandana over my face. I looked like a post-apocalyptic beekeeper. I mixed this stuff double-strength (because why not), with hot water (just to add insult to injury), loaded up a gallon sprayer, and stood in the center of my living room. I sprayed an arc of Demon that landed perfectly in the ceiling gap. Nothing happened. Doubting the advice, I moved to the bedroom and repeated the process. That’s when I started hearing it. Tap.
Thump.
Tap-tap-THUMP. I turned back toward the living room and realized the noise was hundreds of dead roach bodies hitting the floor from a 12-foot ceiling. Two things happened at the same time: 1. I started screaming. 2. I ran out of spray. I had used almost an entire gallon in two rooms. I sprinted to the kitchen to mix another lethal batch while the thumping grew louder and faster. I sprayed the kitchen, ran to the dining room, screaming the whole time, then launched myself out the front door and locked it behind me like the building might explode. When I returned the next day, I could barely see the floor. My apartment had become a battlefield, littered with the carcasses of the fallen. I filled three tall kitchen trash bags with dead roaches. Over the next few days, I heard occasional thumps. Fewer bodies. Then none at all. They were completely gone. I even sprayed again a month later—nothing. I may have rendered the apartment permanently uninhabitable to roaches… but I like to believe the fallen soldiers warned the other clans to stay away or die. I still live in Florida.
I still hate roaches.
I still use Demon. Five stars. Absolute carnage.
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Reviewed in the United States on January 14, 2026 by Dee Adkins
This product is amazing. I use it all the time. Keep my yard pets free works instantly even someone I know that’s in a professional pest control company use the same product.
Reviewed in the United States on March 20, 2026 by MARQUI
Take care of those insects, but I do put more down than what’s recommended, but I don’t have a problem
Reviewed in the United States on March 15, 2026 by James Korty