Drano FlowGuard Enzymatic Build-Up Remover and Drain Cleaner - 30oz
$12.99
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- $6.59($0.21/fluid ounce)Coupon: $0.50 off4.4 out of 5 stars with 571 ratings
- $6.99($0.41/fluid ounce)Coupon: $0.50 off4.3 out of 5 stars with 1110 ratings
- $7.69($0.48/fluid ounce)Coupon: $0.50 off4.5 out of 5 stars with 759 ratings
- $5.29($0.13/fluid ounce)Coupon: $0.50 off4.4 out of 5 stars with 47 ratings
- $15.89($0.12/fluid ounce)Coupon: $0.50 off4.6 out of 5 stars with 126 ratings
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- $6.99($0.41/fluid ounce)Coupon: $0.50 off4.3 out of 5 stars with 1110 ratings
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- $6.99($0.41/fluid ounce)Coupon: $0.50 off4.3 out of 5 stars with 1110 ratings
- $6.59($0.21/fluid ounce)Coupon: $0.50 off4.4 out of 5 stars with 571 ratings
- $7.69($0.48/fluid ounce)Coupon: $0.50 off4.5 out of 5 stars with 759 ratings
- $17.29($0.27/fluid ounce)4.3 out of 5 stars with 83 ratings
- $5.29($0.13/fluid ounce)Coupon: $0.50 off4.4 out of 5 stars with 47 ratings
- $15.89($0.12/fluid ounce)Coupon: $0.50 off4.6 out of 5 stars with 126 ratings
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Guests are saying
The Drano Flowguard Build Up Remover is a highly effective solution for maintaining clean and clear drains. Guests appreciate its easy application and pleasant scent, making it a great addition to regular cleaning routines. Many have noted significant improvements in drainage performance, especially for stubborn clogs and buildup. Its gentle formula is safe for various plumbing systems, providing reliable results without harsh chemical odors. Overall, it is a must-have for anyone looking to prevent future plumbing issues.
Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
4.6 out of 5 stars with 123 reviews
cleans effectively: 3.67 out of 5
quality: 3.67 out of 5
value: 4.33 out of 5
50% would recommend
4 recommendations
5 out of 5 stars
1 November, 2026
originally posted on drano
Good cleaner!
[This review was collected as part of a promotion.] Did the trick! We get consistent buildup of hair in our old tub drain and this was easy to apply and a smooth pour in not the drain. Straightforward instructions and straightforward results.
1 out of 5 stars
25 September, 2026Verified purchase
(no review title)
It wasn't packaged properly and had spilled, messing up the delivery person's clothes and car in the process.
From Drano_Product Expert team
We're sorry to hear about the condition of your order. For best assistance, please contact Target's customer service team directly. Have a great day! – Megan, SC Johnson Consumer Care
1 month ago
5 out of 5 stars
16 September, 2026
originally posted on drano
Added to cleaning routine
[This review was collected as part of a promotion.] A must to keep drains fresh. It helps prevent back ups and clogs. So far our drains have been running smoothly. We have hard water which causes a lot of buildup. The container came intact with no leaks or spills.
5 out of 5 stars
Thumbs up graphic, would recommend
16 September, 2026
Stinky Garbage Disposal Must Have
I didn’t have high hopes after reading the reviews, but this product works!! Especially for stinky garbage disposals! It did take a few days so keep that in mind, but slowly the smell disappeared 🙌🏽 I will definitely stock up once there’s another sale.
4 out of 5 stars
13 August, 2026
originally posted on drano
No strong smell
[This review was collected as part of a promotion.] Very easy to use product and went down smooth and unclogged my drains. My flushing was flowing properly as well. Don’t have any complaints at all.
5 out of 5 stars
10 August, 2026
originally posted on drano
Works as intended and no strong chemical smell
[This review was collected as part of a promotion.] Works great! It was very simple to use, instructions were clear and easy to understand. I was surprised that there wasn't a strong chemical scent like I've smelled with other drain cleaners. This was light and refreshing, and didn't leave me gagging and feeling like I needed to go into another room to get some air. I've used it twice now and the difference in drainage is noticeable from before I used it to now! Water was pooling at the base of the sink and draining slowly, and now there is no pooling and everything drains immediately.
5 out of 5 stars
10 August, 2026
originally posted on drano
Easy to use and works really well!
[This review was collected as part of a promotion.] I really like this product , it was easy to use the instruction were simple to follow , it helped remove buildup and left the drain working much better
5 out of 5 stars
10 August, 2026
originally posted on drano
Very good
[This review was collected as part of a promotion.] This product is very good in just a few minutes it has done its job very well leaving very good results the knob has very good quantity in short ,I really liked the function it performed
3 out of 5 stars
8 August, 2026
originally posted on drano
Maintenance product
[This review was collected as part of a promotion.] Will not bust up clogs, but seems to be a good idea for regular maintenance. We used on both of our bathroom sinks and flow has been good. Package did not leak in shipping.
5 out of 5 stars
6 August, 2026
originally posted on drano
MUST-HAVE
[This review was collected as part of a promotion.] A must-have for keeping drains fresh! 🫧 It helps prevent buildup before it turns into a clog, and it’s so easy to use. My sink drains more smoothly, and I love adding it to my regular cleaning routine. Highly recommend! 💙
4 out of 5 stars
3 August, 2026
originally posted on drano
It has potential
[This review was collected as part of a promotion.] As far as I know, it seems to be working. We have hard water which can cause a lot of buildup. We do not have any current clogs or slow drains. I think that it very well could be helping buildup from forming. I will say that it is a little bit hard to measure when you are only using it for something small and you don’t have to use as much product. Like for maintenance it only wants you to use about 1/3 of it but there’s only a measurement on the side for 1/2. So better measurements on the bottle would be great if you’re going to give multiple ways to use the product. It does have somewhat of a strong scent, but not so bad that you have to air out your entire house. Overall, I’m kind of in the middle on if this product works or not. 
4 out of 5 stars
3 August, 2026
originally posted on drano
Took a while to work
[This review was collected as part of a promotion.] This product works great! It didn’t work instantly I had to let it sit for it to break up the build up but it was able to remove my drains build up fairly fast.
5 out of 5 stars
30 July, 2026
originally posted on drano
No more clogged sinks!
[This review was collected as part of a promotion.] This works great for keeping the pipes clear and clean, and preventing clogs. Our bathroom sink always gets clogged every few months, but using this to maintain it has helped prevent build up and we have not had a clog since. Highly recommend!
4 out of 5 stars
29 July, 2026
originally posted on drano
Convenient and effective
[This review was collected as part of a promotion.] Convenient and effective. Easy to follow the directions and use. Once I had used it I noticed a noticeable improvement with my shower drain. Only thing it doesn’t get it hair, which you’d have to pull out yourself in the drain. But gunk and grime it does a great job with. I think i would get a bigger size just so I just use it in more drains for later use.
5 out of 5 stars
29 July, 2026
originally posted on drano
It works 100%
[This review was collected as part of a promotion.] Dràno Flowguard Build-Up Remover, is used to keep drain clear in bathroom, sinks, toilets, kitchen sinks…. As you can see in the photo-well, actually, my husband didn’t give me time to take a picture itself new. He used in the bathroom sinks right after the product arrived it home, and we got great results. The directions say to use it for 3 consecutive days, but my husband only used for 2, and the sink is draining very well now. I recommend it!
5 out of 5 stars
28 July, 2026
originally posted on drano
Strong drano
[This review was collected as part of a promotion.] I’ve tried a lot of drain cleaners in the past. This one is super easy to use, strong and worked great on my long hair. I was surprised it didn’t have a strong chemical smell like other products I have used in the past. The packaging was perfect for this product. I definitely would buy this product in the future.
5 out of 5 stars
28 July, 2026
originally posted on drano
Prevents clogs and keeps things running smoothly
[This review was collected as part of a promotion.] With older plumbing in our house, we find ourselves using Drano products frequently. However, we tend to use clog removers versus prevention. I was excited to try this build up remover and drain cleaner to keep things running smoothly and avoid letting clogs get started. Drano FlowGuard Build-up Remover is easy to use and dispense, has easy-to-follow instructions, and one bottle provides multiple treatments. The enzymes really work on the pipes to keep things running and draining smoothly, and we will be adding this to our regular plumbing maintenance.
5 out of 5 stars
27 July, 2026
originally posted on drano
Works quick!!
[This review was collected as part of a promotion.] I didn't think I had a drainage issue in my sink, but as I was waiting for the water to warm up before I used the Droano FlowGuard, my sink wasn't draining well. It worked so well and so quickly. Even when I was running water after pouring it, the water drained so much faster. The consistency is really nice, it did not splash and wasn't too think to stick to my sink when rinsing it back out. It also smells nice. The instructions are very clear and it was easy to use.
5 out of 5 stars
27 July, 2026
originally posted on drano
Very effective!
[This review was collected as part of a promotion.] I used this to help with some hair in the drain blockage. Worked well without having to use a whole lot of product. Scent was not too strong and worked pretty quickly for me. Would purchase in the future!
5 out of 5 stars
26 July, 2026
originally posted on drano
Highly recommend
[This review was collected as part of a promotion.] I’ve bee using Drano FlowGuard to keep my drains clean, and it works really well.It’s easy to use, helps prevent clogs before they happen, and keeps everything flowing smoothly. À great addition to my regular home maintenance routine. Highly recommend