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.

75 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.

View all FAQs
Rated 5 out of 5 by from Gets The Job Done I am amazed at how many times Liquid-Plumr Industrial Strength Strength Gel Drain Cleaner has saved me from the cost of hiring a professional plumber. When the drains in my home are slow-running or fully clogged, this impressive product has the power to quickly get the job done. The cleaner is easy to use, fast acting and dependable, even on difficult clogs involving hair, grease, and soap scum. You simply pour the cleaner into the drain, wait, then flush with hot water. Ive used it throughout my household to effectively clear up clogs in showers, bath tubs, bathroom/kitchen sinks and garbage disposals. Moreover, the Industrial Strength Gel is safe for all septic systems, garbage disposals and pipes. However, it is not recommended for use in toilets. Lastly, the product comes with a money back guarantee. Highly recommended. I always make sure to keep a bottle of Liquid-Plumr on hand.
Date published: 2022-12-27
Rated 5 out of 5 by from Worked great. Saved the cost of a plumber We bought this product and it worked exactly as advertised
Date published: 2022-01-13
Rated 5 out of 5 by from LiquidPLUMR Went on You Tube & tried every home remedy out there. Although everybody swore by their home remedies none of them worked for me. I had a bottle of Drano arougn the house so I tried that, said it would work on the bottle ( half used) , it did not , so I figure it needed a second application. Again, a fail. So I bought the LiguidPLUMR insudtiral strength and worked like a charm. Totally worth it. The help in the store tried to steer me towards another product but after much label reading I decided on this product. Glad I did.
Date published: 2021-08-09
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