Buy Now, Pay Later
As low as
$1
/ mo
Learn more
- – 4-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Thursday, Oct 15
Recently Viewed
Style: Gel
Size: 2.1 oz (Pack of 1)
Features
- Kills The Nest: Control infestations and defend your home with this roach killer that attracts roaches in search of food and water. They ingest the bait, carry it back to the nest and trigger a ripple effect, killing other roaches and the entire nest
- Long Residual Action: Designed for sustained efficacy, this cockroach gel bait delivers fast control of even large roaches 24/7 for up to 3 months. It provides continuous defense against re-infestation, ensuring immediate, long-term protection
- Quick, Lasting Results: Formulated with Fipronil, a powerful and fast-acting ingredient that begins working within hours. This bait contains blend of foods that roaches find attractive
- Reaches Tight Spaces: The form-fitting gel and easy-to-use syringe applicator let you apply bait in hard-to-reach spots like cracks, crevices, corners, and other common roach entry points. Suitable for indoor or outdoor use
- Easy to Use: Includes one 2.1 oz syringe of ready-to-use roach killing gel. The built-in applicator allows for clean, accurate placement without vapors, fumes or odorsgreat for kitchens, bedrooms, bathrooms and living areas
Description
Combat Max Roach Killing Gel for Indoor & Outdoor Use Combat Max Roach Killing Gel offers fast, lasting protection against even the toughest roach infestations. Specially formulated to attract roaches searching for food and water, the gel ensures they ingest the bait and carry it back to the nest, triggering a ripple effect that wipes out both large and small roaches. With long residual action, this cockroach gel keeps killing day and night, delivering continuous defense against re-infestation. Powered by Fipronil, a fast-acting ingredient, the formula begins working within hours and uses an irresistible food blend for maximum effectiveness. Packaged in a 2.1 oz syringe, the gel allows for precise application in hard-to-reach areas such as cracks, crevices, corners and spots where roaches occur. The odorless, fume- free and vapor-free formula makes it suitable for use in kitchens, bedrooms, bathrooms, and living areas. Replace all baits every 3 months. At Combat, we’re dedicated to helping you reclaim your home from pests with reliable, targeted pest control solutions. Our range of products—including baits, traps, and gels—is designed to eliminate ants and roaches where they live and breed.
Item Form: Gel
Item Weight: 2.1 ounces
Liquid Volume: 2.1 fluid ounces
Active Ingredients: Fipronil
Brand: Combat
Brand Name: Combat
Unit Count: 2.1 Ounce
UPC: 023400519606
Global Trade Identification Number: 06
Included Components: Syringe
Item Type Name: 5455
Manufacturer: Henkel
Model Number:
Part Number: 5455
Item Form: Gel
Target Species: Insects
Special Features: Starts working in hours, Fast Control of even Large roaches,For hard-to-reach places such as cracks and crevices
Item Weight: 2.1 ounces
Liquid Volume: 2.1 fluid ounces
Active Ingredients: Fipronil
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Oct 15
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.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Style: Gel
Size: 2.1 oz (Pack of 1)
Can't say enough good stuff about this good stuff. I live in the south of France and over the years more and more German roaches (apparently the worst kind) had been appearing, it went from a few a year to a few a day to over 50 a day! I have 5 cats (whoever says cats keep them away is wrong....or mine are lazy!) and didn't want to put a poison down as I worried about it poisoning them. I knew I could put it in places where they wouldn't go but I worried if they ate a poisoned roach it could harm them. So I researched and tried many natural ideas, catnip and bay leaves to keep them away, they walked over them, condensed sweet milk mixed with baking soda, they walked right past the balls, sugar and bicarb they ate it but never found any dead ones! It got so bad eventually that I was killing more than 20 each time I went in the kitchen, they had moved into the bedrooms (nests under the bed, in my drawers, in my clothes!), lounge, bathroom....EVERYWHERE and if I dared to turn on the kitchen light in the middle of the night it was like something out of a horror movie with hundreds of them scattering for cover!! They were even crawling on me in my sleep to the point I started sleeping with the light on so I could splat them and felt like I was going to have a nervous breakdown! Enough was enough, I realised my splatting and hoovering them up was a losing battle. I didn't want to use a bomb either as I worried about me and the cats breathing it even after a day had passed so I spent ages looking into all the different poisons and their active ingredients. Most of them said poisonous and even lethal to animals even in small doses. Then I found Combat Source Kill Max and saw all the amazing reviews, hoped it would be good. I found out that the active ingredient, Fipronil, is the same as many of the treatments put on the back of a cat's or dog's neck to kill fleas and ticks but in a smaller quantity so I would worry less about the cats. I ordered it (3 tubes, they are huge, great value) and as soon as it arrived I got busy putting tiny blobs everywhere. I read it was best to put tiny blobs in lots of places and lines of it in cracks where they often run along. I did make sure that all the places were not accessible to my cats so in cupboards, on plug sockets, behind fridge, toaster, toilet, under sinks. I didn't put any in my bedrooms or lounge as I read it is better to coax them out of those areas into the kitchen and bathroom, so I thought I would see how it went. I was convinced I would be an unlucky one where it didn't work or that the reviews were all made up (you never know these days!) but oh my god I was amazed! That evening I kept checking the blobs and even with the lights on there were already roaches munching away on many of them, I couldn't believe it. They were like drug addicts getting a fix, even when I touched one it didn't run off just carried on eating! The next day (12 hours later, much faster than I expected) it was like Roach Armageddon, bodies everywhere, loads dead on the kitchen counters already and even more on their backs dying, unable to get up (I almost felt bad for them) so I squashed them knowing others would carry the poison back the the many nests. I cleared away the bodies on view so that my cats couldn't eat them and left the ones in cupboards to get eaten by other roaches and pass it through the system. Day 2 just as many dead and dying then the third day only a few, I could hardly believe it had worked so well. I understood how it worked and that it could take a few weeks or even months to get rid of a large infestation but after that first week I then only found maybe one or two a week, usually walking like it was drunk. I then decided to put a little blob just inside each bedroom to get the remaining ones in there, now that I knew it couldn't coax any from the kitchen as they were all dead. After 2 months I put all new poison blobs down (even though hadn't had more roaches) just to make sure and also decided to do all of the communal areas on each floor in my apartment block to stop any straying from outside (1 tube goes a long way and after doing all of this I still had only just finished the first tube). My concierge saw me and asked what I was doing, she said it was kind and the next day the bug man came and bombed all those areas too so that was a bonus. That was last November (2013) and is now May 2014, I have seen maybe one a month, if that, and couldn't be happier. It is such a relief and after so many years of hating them and dreading finding more of them I can now say it is a distant and horrible memory. I clean holiday apartments and have been putting a few blobs down in each, this stuff lasts for ages, even after it has dried and been down for months it still attracts and kills them. It has honestly made my life a happy one, thank you Combat, I would definitely say I would buy it again and again but here is hoping I never have to! :D
...
show more
Reviewed in the United States on May 1, 2014 by Alexandra Jones
Style: Gel
Size: 2.1 oz (Pack of 1)
COMBAT...AARRGGHH 🪳🪳🪳🪳🪳🪳🪳🪳🪳. I noticed a few bugs as I am packing 85 year old house. NOT DOING BUS TODAY ! The price on this was low so I expected to get low quality. Just the opposite, this poop looking stuff works better than all the expensive sprays and stuff I've wasted money on. It's hard to believe, but it really stopped then. I like that it didn't have any odor at all for my fur babies to be around. I'M GOING WITH 5 STARS ALL DAY LONG!
...
show more
Reviewed in the United States on September 21, 2026 by Tammy
Style: Gel
Size: 2.1 oz (Pack of 1)
Kills roaches and other bugs too. Couple it with some bifenthrin 7.5 and spray for 3 weeks inside and out. Including around the outside garbage cans and fence line. You will kill everything. Don't forget the fence line. Your neighbors are gross.
Reviewed in the United States on September 21, 2026 by ME
Style: Gel
Size: 2.1 oz (Pack of 1)
It works! We had cockroaches in our old home we had just purchased and it was about 1 a night. After seeing about 6 total, I had had it. I got this and put it behind my oven (where they most frequently came from). Within days there were no cockroaches whatsoever. I didn’t see a cockroach for 1-2 months. Now that it’s been about 2-3 months and the gel is gone, they are back to about 1 a night or every other night so I need to reapply. It didn’t get rid of them for good but if you keep up with the gel, you should be good to go!
...
show more
Reviewed in the United States on August 7, 2026 by Alexandra Asay
Style: Gel
Size: 2.1 oz (Pack of 1)
As of right now it's too soon to speak on how this product works. However, I'm pretty sure I used this product years ago at my mom's house. She had a leak underneath her fridge she didn't know about and all that moisture seeping into the wood and under the house attracted a lot of those large flying roaches that are known as "American Roaches." I remember putting this stuff out before and our roach problem going away. Now I'm in an apartment (in another State) and it's monsoon season out here in the desert. Between the humidity and heat these roaches are starting to come out of hiding. I'm pretty sure they're coming in through the air conditioning vent(s). Now, I want to say that it's just because it's that time of year and they're looking for water and food... But, when you live in an apartment, you never know how other people are living... And the way some of these people throw their trash outside on the ground and in the parking area you never know! ...and THEIR pest problems can become YOUR problem. I'm a clean person, and I don't live in a 'cluttered' house... and I have nothing that would attract roaches... And, yet, in the last week I've now seen three of these big bad boys on my walls near a particular air conditioning vent. So, I put some of this stuff up on the grill that covers the vent. Hopefully they will eat and not even come in here (cuz I'm tired of throwing chanklas) 😂. But, as backup, I also got roach baits and roach motels laid out. Still... only seeing three roaches and not a huge infestation (thank God!!)... you know if there's one roach, there's a hundred more SOMEWHERE... But, with that being said, living in an apartment, I'm going heavy duty with the arsenal because it's a large complex vs. a single-dwelling that could have a very large infestation for all I know. So, it's not like I'm treating just MY apartment; rather, ultimately hoping to rid the entire building of them. We get weekly pest control out here and we can even request that they spray around our personal unit... but, that's not going to do much good for the buggers that are living within the walls. Because I think I've used this product before, I'm pretty confident in saying I believe it works. I will try to remember to come back and update this review, but obviously it's going to take several weeks to know if what I'm doing is working. Or to know if they've actually been eating the bait. The only thing is, because I have also laid out those large plastic roach baits... It might be a little difficult to pinpoint whether it was this stuff or the roach baits that took care of the problem. Nonetheless I should at least be able to see if they've been eating it IF I've placed it in the right places. With that being said, you do get quite a bit of the product in this large caulk-like syringe (you could easily treat an entire house on one tube)... For it being big and a bit awkward to hold at some angles... the stuff comes out pretty easy. If it's not coming out easy you probably have a bad tube that's drying up... Because it should be a really soft gel-like substance (like cake icing you spell on top of a cake with).
...
show more
Reviewed in the United States on July 20, 2025 by LakeOfJudea
Style: Gel
Size: 2.1 oz (Pack of 1)
I didn't notice much effectiveness, but since I installed a lot of poisons and cockroach traps, it all worked. A good temporary solution may be
Reviewed in the United States on September 24, 2026 by Alex
Style: Gel
Size: 2.1 oz (Pack of 1)
This roach-killing gel is a decent option, but my experience has been a little 50/50. It does seem to attract roaches, and I like that the syringe makes it possible to apply the gel in small areas where you notice activity. My biggest complaint is that it can be messy to apply. The gel can be difficult to control, and it’s not always easy to place exactly where you want it without leaving a little mess behind. Overall, it’s convenient to have on hand and seems to work to some extent, but I think the application could definitely be improved. Decent product, but the messiness keeps it from being a 5-star product for me.
...
show more
Reviewed in the United States on August 26, 2026 by Jennifer
Style: Gel
Size: 2.1 oz (Pack of 1)
This stuff works great. Found some dead roaches the day after application.
Reviewed in the United States on September 26, 2026 by Doctor Dave