Industrial Strength Gel

When you’ve got a big job, choose a drain cleaner that’s got industrial-strength power. Whether you’re using our 42-ounce bottle or our massive 128-ounce bottle, Liquid-Plumr® Industrial Strength Gel is a colossal clog-crusher.

64 Reviews

Safe for

All septic systems and pipes, including PVC, plastic, copper and old pipes.
Know Your Pipes

How To Unclog Your Drain


Slowly pour 1/2 of the bottle down the drain.


Allow it to work for 15 minutes. For standing water, wait until drain is clear.


Flush with hot tap water and you're done! Repeat regularly (at least monthly) to help keep your drains clear.

For garbage disposals, follow the same directions and flush with the disposal running. Avoid all splashing.

Industrial Strength Gel

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to know

Safe for

All septic systems and pipes, including PVC, plastic, copper and old pipes.
Know Your Pipes


Keep out of reach of children. Harmful if swallowed. Avoid splashing. Injures eyes, skin and mucous membranes on contact. Do not use with ammonia, toilet bowl cleaners or non–Liquid-Plumr® clog removers, as splashing or the release of hazardous gases may occur. Clean up any spillage immediately.

  • Are Liquid-Plumr® products safe for all pipes?

    Yes. Lab tests confirm that all Liquid-Plumr® products are safe for all household plumbing. However, we do not recommend using clog removers in rubber pipes. The products may damage rubber.

  • Is it safe to mix Liquid-Plumr® products with any other product?

    No. Do not use Liquid-Plumr® products with ammonia, toilet bowl cleaners or other non–Liquid-Plumr® clog removers, as splashing or the release of hazardous gases may occur. We do not recommend using Liquid-Plumr® products with non–Liquid-Plumr® products. It is safe to use any Liquid-Plumr® product in the same drain.

  • What should I do if I come in contact with either the foam or the liquid in Liquid-Plumr® products?

    If in eyes, flush immediately with water for 15 minutes. If wearing contact lenses, remove first. If on skin, wash immediately with water. If swallowed, drink a full glass of water. Do not induce vomiting. In all cases, call a doctor or poison control center immediately.

  • How long can I store Liquid-Plumr® products in my home?

    All Liquid-Plumr® products can be stored in your home for up to 12 months prior to use.

  • Is it safe to use Liquid-Plumr® products if I have a septic system?

    Yes. It’s safe to use Liquid-Plumr® products if you have a septic system. The ingredients degrade rapidly and will not harm the bacteria in your tank.

  • Can I use Liquid-Plumr® products in my toilet?

    No. Liquid-Plumr® products are not designed to remove the waste that may be clogging your toilet.

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Rated 5 out of 5 by from Tried this one after 3 other brands and IT WORKED! Had a stubborn master bath sink clog. It was a double sink on the 4th floor of a condo bldg. Tried 3 other brands of decloggers (each left to work in the drain overnight) along with a snake and plentiful hot water flushing, but the clog just got worse. Finally, poured the entire bottle of this product into the standing water, and the clog cleared completely within 4 hrs!!! I was impressed. Thank you so much! Now I have a go-to product for future clogs. :-)
Date published: 2020-08-19
Rated 5 out of 5 by from I used to have a lots of issues with my bathtub and all the time used to be clogged. Ive tried different things to unclog it and some worked, but within a week it was clogged again. Well I tried this Liquid-Plumr Industrial Strength Gel Drain Cleaner, 42 oz and omg it worked!!! I used it and my bathtub hasnt clogged at all. I strongly recommend this product!!!Liquid Plumr Industrial Strength Gel
Date published: 2020-06-03
Rated 5 out of 5 by from LOVE THIS ! ! product is good and the price point is awesome. use all the time and i have not been disappointed. Easy to use and no mess ! Works like a GEM
Date published: 2020-05-01
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