Model # 4460000251

Internet # 203197057

Store SKU # 410780

42 oz. Industrial Strength Gel Drain Opener

$5.98 /each

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Product Overview

Liquid-Plumr Industrial Strength is a powerful drain cleaner that is specially formulated to take on the toughest clogs. The thick gel holds together to cut through standing water and attack built-up hair, gunk, grease and soap scum. It gets to work fast, eliminating stubborn blockages and leaving your drain free-flowing and clog-free. Liquid-Plumr Industrial Strength is safe for all garbage disposals, septic systems and pipes, including PVC, plastic, copper and old pipes. Keep your drains clear with Liquid-Plumr.

  • Clears stubborn fully blocked drains
  • Special thick gel wont dilute as it cuts through the toughest clogs
  • Safe for all pipes, including PVC, plastic, copper, old pipes and septic systems
  • Saves time and money by empowering you to clear drains yourself
  • Satisfaction guaranteed
  • Industrial strength

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Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 


Chemical Form 
Commercial / Residential 
Commercial / Residential 
Compatible Pipe Material 
Maintenance, Repair & Supplies Product Type 
Drain Openers & Chemicals 
Number of treatments per container 
Prevention formula 
Protects pipes from corrosion 
Quantity (oz.) 
Safe for garbage disposals 
Set Time (Min.) 

Warranty / Certifications

Manufacturer Warranty 

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Customer Questions & Answers

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Customer Questions & Answers

42 oz. Industrial Strength Gel Drain Opener
42 oz. Industrial Strength Gel Drain Opener

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What are the white solids in it?

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March 29, 2016
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will liquid plumber clear leaves from a gutter downspout

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sacramento ca
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July 27, 2015
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Customer Reviews

Rated 4.7 out of 5 by 23 reviewers.
Rated 5.0 out of 5.0 by The Best for Clogs! Period. After trying Instant Power and Drano for a very slow drain and they were both ineffective, we read the reviews for this Liquid Plummer and it worked! Wished we used this first. We were so happy I can't tell you. We danced and shouted. Because it was going to cost us 200.00 for a plummer if it did not work and a lot of aggravation. Use this method: Try to get all the water out, wait 30 minutes minimum, an hour is better. Then pour as much boiling water down drain as possible. It's been a month and the water is going down so fast you would think their is no pipe or drain. We will only get this product from now on. May 13, 2016
Rated 5.0 out of 5.0 by Unbelieveable We've had a slow drain in one of our bathroom sinks since we bought the house. For two years we dealt with it. We tried nearly every product on the shelf, relying mostly on "professional" looking labels and claims. We even had a plumber out twice to snake the thing, which helped, but never really worked perfectly. I never thought to use a consumer grade product like Liquid-Plumr. Finally in exasperation, my wife picked up a bottle of this stuff because the sink had stopped entirely. I poured the whole bottle down the drain and waited maybe 30 minutes. When I came back, I ran the water and unbelievably, the drain runs perfectly! I'm a fan. March 26, 2016
Rated 5.0 out of 5.0 by Holy mother of unclogging! I am a skeptic. I was also very frustrated. I have been battling a clogged toilet for DAYS. I tried heavy duty Drano that I use on my shower hair clogs, I tried a plunger, I tried an auger. All multiple times. I really didn't want to call a plumber, so I wandered the interwebs in search of another solution. The Drano I had already used (multiple times) had stellar reviews and I knew it just wasn't going to work. That being said, I figured ten bucks for a couple of bottles of this couldn't frustrate me more than I already was. So, I made the trek into town to Home Depot and purchased two bottles, then made the trek back home. Directions say dump 1/3 of the bottle in and wait 15 minutes. I knew this wasn't going to work, so I dumped the whole thing in and walked away to go watch a show. My show ended, I went back to the bathroom and the water had drained from the bowl (mostly). Progress! I dumped some hot water from my shower tap in and flushed. Well, it drained, but slowly. I figured since it had already done this much, I may ad well give it another chance. I dumped half of the second bottle in and walked away for half an hour. I came back, dumped a jug of hot water in the bowl, and BY GOLLY IT DISAPPEARED! So I dumped another in, and it disappeared too!! So as not to chance it, I dumped a few more in for good measure. Then I flushed. And then I danced. It worked! Two days of frustration literally down the drain. Yes! So, go buy some. Make sure you have four or five bottles handy at any given time. March 8, 2016
Rated 5.0 out of 5.0 by January 22,2016 Dumped about 25oz down my garbage disposal due to a clog. I siphoned all the water out of the disposal well with a turkey baster and let it stand about 2 hours. Then i heated up a big pot of water and poured it down the drai and it ran cleat finished with hot tap water and clog free. Impressed!! January 22, 2016
Rated 5.0 out of 5.0 by Clean Flush I was having trouble with 2 of 3 toilets in my house. I decided to pour a half bottle of Liquid Plumber into the tank on the two offending toilets, after turning off the water and emptying the tanks. Then after waiting 15 minutes I poured hot water into the tanks and flushed out the toilet bowls. Both toilets now work better, and flush completely. March 5, 2014
Rated 5.0 out of 5.0 by Liquid Plumr Industrial Strength Gel - breaks down all the gunk Liquid Plumr Industrial Strength Gel is definitely made for drains that are used - and/or clogged - quite frequently. Perfect for ladies shower to break through hair build up in the drain. December 29, 2013
Rated 5.0 out of 5.0 by Works great !!!! Works fantastic. I am on septic and it clears any and all clogs. Great product ! September 26, 2015
Rated 5.0 out of 5.0 by This finally did the trick! My bathtub was seriously clogged. When showering I had water come up past my ankles, and there was still standing water in the tub 12+ hours later. I tried Drano Max Gel, I tried a plunger, I tried snaking the drain (the clog was too far down for my small snake). I was about a 1/2 step away from calling a plumber when I bought a gallon of Liquid Plumr Industrial Stength Gel. I poured in maybe 1/4 of the bottle (but remember I bought a freaking gallon of it!) and let it sit for like 5 hours. I then flushed it with a 2 large pots of boiling water. And voila! Clog gone, and tub draining perfectly! April 8, 2014
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