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Drano FlowGuard Enzymatic Build-Up Remover and Drain Cleaner - 30oz​ - 2 of 4Drano FlowGuard Enzymatic Build-Up Remover and Drain Cleaner - 30oz​ - 3 of 4Drano FlowGuard Enzymatic Build-Up Remover and Drain Cleaner - 30oz​ - 4 of 4
Drano FlowGuard Enzymatic Build-Up Remover and Drain Cleaner - 30oz​ - 1 of 4

Drano FlowGuard Enzymatic Build-Up Remover and Drain Cleaner - 30oz​

5 Questions
$12.99
 

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About this item

Highlights

  • Unique formula with active enzymes
  • Holiday Kitchen Prep: Get ahead of a slow kitchen drain before holiday cooking and cleanup begin
  • Helps remove build ups
  • Safe for garbage disposals, bathroom, kitchen, other drains and safe for toilets
  • Prevents septic system back-up
  • Can leave in drains overnight

Description

With a unique formula containing active enzymes, Drano Max Build-Up Remover helps prevent clogs from forming in your pipes. This product helps remove build up but will not unclog your drain. Use it on a monthly basis to keep your drains running smoothly and prevent clogged drains. An ounce of prevention is worth a pound of cure!

DIRECTIONS FOR USE: Start-Up Treatment For Drains: Run warm water for one minute. Turn off water and pour 10 ounces into drain. Briefly run WARM water again (approximately 2 cups). Avoid running water for 6-8 hours. For Slow-Running Toilets: 1. Flush 4 ounces down toilet for 3 consecutive days. 2. Don’t flush for 6-8 hours after initial treatment. It may be easiest to treat before going to bed or work. On-going Treatment: Pour 2 ounces down each drain and 4 ounces down each toilet every 2-4 weeks. NOTE: Initial use may cause loosened build-up to slow or, in rare cases, block the flow of water. Don’t worry – this means Drano Max Build-Up Remover is working to remove build-up. Simply plunge and repeat the treatment. For best results: Clear pipes of any clogs before start-up treatment with a DRANO Clog Remover. Use as directed. This product will not open clogs. For clogged drains, try DRANO MAX GEL Clog Remover. Do not reuse this package.



WARNINGS: EYE IRRITANT. Contains natural enzymes, bacterial cultures, and surfactants. Avoid contact with eyes, open cuts, or sores. FIRST AID: EYES: Immediately rinse with plenty of water for at least 15 minutes. If irritation persists, get medical attention. KEEP OUT OF REACH OF CHILDREN AND PETS.

INGREDIENTS: Water, Enzyme, Thickener, Fragrance, Dye, pH Adjuster. SCJ Formula #35*4300
Scent: Unscented
Product Warning: Keep out of reach of children, keep out of eyes, keep out of reach of animals
Product Form: Liquid
Package Quantity: 1
Recommended Surface Application: Porcelain, Metal
Product Results: Cleaner
Recommended Product Application: Dishwasher, Drain, Shower, sink, Garbage Disposals
TCIN: 94960109
UPC: 019800002190
Item Number (DPCI): 003-05-7981
Origin: Made in the USA or Imported
General Disclaimer:
Content on this site is for reference purposes only. Target does not represent or warrant that the nutrition, ingredient, allergen and other product information on our Web or Mobile sites are accurate or complete, since this information comes from the product manufacturers. On occasion, manufacturers may improve or change their product formulas and update their labels. We recommend that you do not rely solely on the information presented on our Web or Mobile sites and that you review the product's label or contact the manufacturer directly if you have specific product concerns or questions. If you have specific healthcare concerns or questions about the products displayed, please contact your licensed healthcare professional for advice or answers.
If the item details aren’t accurate or complete, we want to know about it.

Ingredients:

water, enzyme, thickener, fragrance, dye, ph adjuster.

Allergens & Warnings:

NOTE: Initial use may cause loosened build-up to slow or, in rare cases, block the flow of water, Don't worry-this means Drano Max Build-Up Remover is working to remove build-up. Simply plunge and repeat the treatment. For best results: Clear pipes of any clogs before start-up treatment with a DRANO Clog Remover. Use as directed. This product will not open clogs. For clogged drains, try DRANO MAX GEL Clog Remover. Do not reuse this package., CAUTION: EYE IRRITANT READ BACK LABEL CAREFULLY., CAUTION: EYE IRRITANT. Contains natural enzymes, bacterial cultures, and surfactants. Avoid contact with eyes, open cuts, or sores. FIRST AID: EYES: Immediately rinse with plenty of water for at least 15 minutes. If irritation persists, get medical attention. KEEP OUT OF REACH OF CHILDREN AND PETS.

Shipping details

Estimated ship dimensions: 9.8 inches length x 4.8 inches width x 2.8 inches height
Estimated ship weight: 2.45 pounds

Return details

This item can be returned to any Target store or Target.com.
This item must be returned within 90 days of the date it was purchased in store, delivered to the guest, delivered by a Shipt shopper, or picked up by the guest.
See the return policy for complete information.

Q: Could I use this in my dishwasher drain?

submitted by Member7 - 10 days ago
  • A: Thanks for checking! We do not recommend using this in dishwashers. Instead, we recommend contacting a plumber. – Brooklyn, SC Johnson Consumer Care

    submitted byDrano_Product Expert - 9 days ago
    Brand expert

Q: Does this cling to vertical pipes to prevent sludge buildup? I want to use as preventative maintenance.

submitted by Doug - 2 months ago
  • A: Great question, Doug. If drains are running fine and the goal is purely preventative maintenance, then Drano® FlowGuard™ Build-up Remover is the recommendation. For slow drains and/or odors, Drano® EarlyAction Foamer is the right choice. It fills the whole pipe and reaches build-up that ordinary liquids can't. Hope this helps – we're also available by phone at 1-800-558-5252 (weekdays, 8 a.m. to 4:30 p.m. CT) and happy to assist further. – Megan, SC Johnson Consumer Care

    submitted byDrano_Product Expert - 27 days ago
    Brand expert

Q: Is this safe for Older pipes in an old house

submitted by Honest - 4 months ago
  • A: Great question! Drano® FlowGuard can be used to help prevent clogs for all pipes, septic systems, and toilets. Have a wonderful day! – Mindi, SC Johnson Consumer Care

    submitted byDrano_Product Expert - 4 months ago
    Brand expert

Q: Is there supposed to be a safety seal on this? Just received mine and there is no seal- just a regular twist top.

submitted by Angela B - 4 months ago
  • A: Hi Angela! Drano® is designed to have only a childproof cap and will not have a seal on the top of the bottle. This prevents splashing when you open the bottle. Have a wonderful day! – Mindi, SC Johnson Consumer Care

    submitted byDrano_Product Expert - 4 months ago
    Brand expert

Q: Will this help with a fruit fly problem?

submitted by dilla - 5 months ago
  • A: Hi there! While this has been tested to clean pipes and help prevent clogs, it is not tested against fruit flies, and we do not recommend it for this purpose. Have a great day! – Megan, SC Johnson Consumer Care

    submitted byDrano_Product Expert - 5 months ago
    Brand expert

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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
    Image

    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.
    shaneP
    Did you find this review helpful?
    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.
    Target Team Member
    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
    Did you find this review helpful?
    5 out of 5 stars
    16 September, 2026
    originally posted on drano
    Image

    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.
    AhmorieB
    1 guest found this review helpful. Did you?
    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.
    Rani
    cleans effectively: 5 out of 5
    quality: 5 out of 5
    value: 5 out of 5
    Did you find this review helpful?
    4 out of 5 stars
    13 August, 2026
    originally posted on drano
    Image

    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.
    JenniferF
    Did you find this review helpful?
    5 out of 5 stars
    10 August, 2026
    originally posted on drano
    Image

    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.
    JohnC
    Did you find this review helpful?
    5 out of 5 stars
    10 August, 2026
    originally posted on drano
    Image

    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
    EllenS
    Did you find this review helpful?
    5 out of 5 stars
    10 August, 2026
    originally posted on drano
    Image

    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
    LisandraO
    Did you find this review helpful?
    3 out of 5 stars
    8 August, 2026
    originally posted on drano
    Image

    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.
    LindseyC
    Did you find this review helpful?
    5 out of 5 stars
    6 August, 2026
    originally posted on drano
    Image

    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! 💙
    SophieM
    1 guest found this review helpful. Did you?
    4 out of 5 stars
    3 August, 2026
    originally posted on drano
    Image

    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. 
    KevinC
    Did you find this review helpful?
    4 out of 5 stars
    3 August, 2026
    originally posted on drano
    Image

    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.
    NatalyG
    1 guest found this review helpful. Did you?
    5 out of 5 stars
    30 July, 2026
    originally posted on drano
    Image

    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!
    HaleyS
    Did you find this review helpful?
    4 out of 5 stars
    29 July, 2026
    originally posted on drano
    Image

    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.
    AlexisK
    1 guest found this review helpful. Did you?
    5 out of 5 stars
    29 July, 2026
    originally posted on drano
    Image

    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!
    AnaT
    1 guest found this review helpful. Did you?
    5 out of 5 stars
    28 July, 2026
    originally posted on drano
    Image

    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.
    BrynM
    Did you find this review helpful?
    5 out of 5 stars
    28 July, 2026
    originally posted on drano
    Image

    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.
    ErinK
    1 guest found this review helpful. Did you?
    5 out of 5 stars
    27 July, 2026
    originally posted on drano
    Image

    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.
    ShelbiS
    Did you find this review helpful?
    5 out of 5 stars
    27 July, 2026
    originally posted on drano
    Image

    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!
    BrittanyT
    Did you find this review helpful?
    5 out of 5 stars
    26 July, 2026
    originally posted on drano
    Image

    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
    DoraikyP
    Did you find this review helpful?

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