ZEP 1 gal. Professional Strength Drain Cleaner-ZUPRDO128 at The Home Depot
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Model # ZUPRDO128

Internet # 202333071

Store SKU # 338342

1 gal. Professional Strength Drain Cleaner

ZEP 1 gal. Professional Strength Drain Cleaner

This item has been discontinued.
The Home Depot no longer carries this specific product.

$8.98 / each
Item cannot be shipped to the following state(s): AK,HI


Model # ZUPRDO128

Internet # 202333071

Store SKU # 338342

Store SO SKU # 1001088569

The ZEP 128 oz. Professional Strength Drain Opener is a powerful, thick, fast-acting drain opener that pours through standing water to attack many types of clogs. Safe for pipes and septic systems, this drain opener treats 8 drains.

  • Attacks many types of clogs
  • 128 oz. container provides 8 treatments
  • Works in as few as 15 minutes
  • Liquid formula pours through standing water to attack the clog
  • Powerful, thick, fast-acting formula
  • Safe for pipes and septic tanks
  • Satisfaction Guaranteed

Info & Guides

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Assembled Depth (in.)  5 in  Assembled Height (in.)  12.25 in 
Assembled Width (in.)  7 in  Chemical Form  Liquid 
Commercial / Residential  Commercial / Residential  Compatible Pipe Material  PVC 
Maintenance, Repair & Supplies Product Type  Drain Openers & Chemicals  Manufacturer Warranty  None 
Number of treatments per container  Prevention formula  No 
Protects pipes from corrosion  No  Quantity (oz.)  128 
Returnable  90-Day  Safe for garbage disposals  Yes 


Rated 3.4 out of 5 by 33 reviewers.
Rated 4 out of 5 by Works on Hair and Soap Scum This is an Alkaline based drain cleaner (Bleach and Lye) which works well especially on sinks or shower drains which are clogged by hair and soap scum. This tends to be cheaper than other fancier foaming brands but I find it works just as well. The only other product I have used which worked better was some dry pellet form drain cleaner which I used in the middle east. It literally smoked and boiled in the pipes. Not sure if you can legally buy that in the US but it may be worth a shot if this product does not work for you. July 21, 2013
Rated 5 out of 5 by It worked - for me Bottom line: it worked well for me, unlike negative view of some. Detail: Apartment in 50 year old high rise. Bathroom sink with 12 foot horizontal run with presumably slight grade to vertical soil pipe. Very slow draining with little or no help from plunging. Instructions: "16 ounces" . I applied 32 ounces to get plenty of cleaner past trap under sink and let sit overnight. Vast improvement. Following night for insurance: 48 ounces. Still draining perfectly after 2 weeks! Bonus: Gallon ( 128 ounces) under $10.00 at Home Depot - maybe cheapest of about a dozen products. Different reviews (and results) may be due to differences in composition of the clogs. I have no idea what mine was. September 28, 2014
Rated 1 out of 5 by didn't work at my house Used it according to instructions...several times. No use. Have had good luck with other ZEP products so this was a disappointment. I'll try LIQUID PLUMBER as other reviewer did and see if that will keep me from calling plumber. August 13, 2014
Rated 1 out of 5 by Product didn't work for me. I followed the instructions, but ultimately had to call the plumber. I was hoping I wouldn't have to do that. July 24, 2013
Rated 2 out of 5 by Vinegar worked better when it mattered most I've used this de-clogger on sinks with minor backup and it worked ok. But I had a shower that had lots of hardwater buildup and probably regular gunk too that was draining very slowly. After several treatments of the Zep, no change. So I tried a half gallon of cheap vinegar followed by boiling water, cleared the problem right up. And at least the much cheaper vinegar that's left over has many other uses. Why use an expensive industrial strength chemcial when a cheap, naturally occuring chemical works better? July 13, 2013
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Store Exclusive. This item is available for purchase in select stores only.