Green Gobbler Main Line Drain Opener and Clog Remover Liquid, Bleach-Free - 1 Gallon
Green Gobbler Main Line Drain Opener and Clog Remover Liquid, Bleach-Free - 1 Gallon
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Green Gobbler Main Line Drain Opener and Clog Remover Liquid, Bleach-Free - 1 Gallon

4.2 stars out of 755 reviews
(4.2)|
755 ratings

Key item features

  • Powerful Mainline: This high-density liquid effectively breaks down stubborn clogs and buildup, liquefying hair, sludge, and organic material in main drain lines.
  • Versatile Pipe: Safe for use in sinks, tubs, toilets, and garbage disposals, it is not harmful to copper or PVC pipes.
  • Extended Reach: The formula can effectively clear clogs located up to 50 feet away from the drain.
  • Easy Application: For main line clogs, simply pour into a first-floor toilet, flush, and refrain from use for 10-12 hours.
  • Gentle Formula: Features a bleach-free, non-corrosive formula that is safe for septic systems and free of sodium hydroxide and harsh odors.
  • Anti-Splash: The bottle incorporates anti-glug technology to help reduce splashing during application.
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Current price is $18.8214.7 ¢/fl oz
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Green Gobbler Main Line Drain Opener and Clog Remover Liquid, Bleach-Free - 1 Gallon $18.82 14.7 ¢/fl oz

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4.2 out of 5 Stars. 755 reviews

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Customer ratings & reviews

4.2 out of 5 stars
stars755 ratings326 reviews
How item rating is calculated

Reviews summary

Pros
  • : Does not damage pipes during use.
  • : Resolves clogs overnight.
  • : Available at lower prices than competitors.
  • : Has little to no odor.
  • : Clears blockages in sink drains with varying degrees.
Neutral
  • : Can be effective, but may require repeated use.
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Showing 1-3 of 326 reviews

May 17, 2025
JenniferWarren
Item details
Size: 1 gal
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

It really, REALLY works!! (Really!)

Green Gobbler Main Line Opener And Clog Remover Seriously. It's nothing short of miraculous. I've had an ongoing problem with my master bath sink. Every 4 to 6 months it starts draining more and more slowly until it's basically unusable and we take it apart and have to clear it about a foot into the wall. We've tried several “industrial” versions of name brand drain cleaners, and a variety of cheap, zip tie looking snakes with no results whatsoever. After reading a CNET article (Best Chemical Drain Cleaners You Can Buy in 2025) I decided to try the Green Gobbler Main Line Opener And Clog Remover. Per the instructions, I poured a quarter of the bottle down the drain, waited an hour and then poured hot water in. It helped a little. The instructions said if that didn't work, to try again and let it sit overnight. Total success! Even with the water running full blast, it's draining beautifully. If you have a really stubborn clog - try it! It's worth every freaking cent! Highly, highly recommend.

Helpful?7J4XMAJJKFPF592305177
Dec 3, 2025
Ron
Item details
Size: 1 gal
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

had a slow kitchen sink drain and with 16oz of treatment for 1/2hr ot opened the drain up. I followed up with another 16oz let it sit overnight just for added precaution and my sink is totally clear now. Able to fill the sink and pull the plug with a couple of gallons of water and it drains fast.

Helpful?7J4XMAJJKFPF592305177
Jan 9, 2026
lori
Item details
Size: 1 gal
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

It really works!

We had a main line blockade(ancient plumbing). I tried other clog removers, no luck. I tried a toilet snake, nope didn't help. Last try was this stuff before I called Roto-Rooter guy or plumber. This is like about 20 bucks but completely worth it. I definitely recommend it.

Helpful?7J4XMAJJKFPF592305177