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Model # ZUCRY2

Internet # 100086662

Store SKU # 115081

2 lb. Crystal Heat Drain Opener

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

$7.98 /each
  • Protects pipes from corrosion
  • Up to 96 treatments per container


Model # ZUCRY2

Internet # 100086662

Store SKU # 115081

For especially tough clogs, use ZEP 2 lb. Crystal Heat Drain Opener. Its special formula generates heat to melt clog-causing grease, soap scum and hair on contact.

  • Dissolves clog-causing grease, hair and soap scum in pipes and septic systems
  • Powerful granular formula generates heat to dissolve clog-causing agents on contact
  • About 10 min set time
  • Satisfaction guaranteed

Info & Guides

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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 


Rated 3.6 out of 5 by 26 reviewers.
Rated 5.0 out of 5.0 by The best way to clear a drain. I'm going back a few years, but there was a product called Red Devil Lye that was available at the grocery store. It was very inexpensive and did a great job. Well, I heard that Lye (Sodium Hydroxide NaOH), is used to make illegal drugs, so Red Devil Lye is no longer on grocers shelves. I was glad to find Crystal Heat at Home Depot. I read the label and yes, this is NaOH. My tenant had a clogged drain, so I did my usual routine. First, I open the window. If possible, I run hot water down the drain (if it's slow) and get the pipes nice and hot. I then pour the drain cleaner in - about a couple teaspoons, but I don't measure. I then leave the room and close the door. 10-15 minutes later, I come back in and listen to the drain. If it's still hissing and smoking, I leave for another 10-15 minutes. When there is no more noise, I run hot water down the drain and see if it cleared. If it's still clogged, I repeat. Normally, it takes about 2-3 tries and I usually do one extra to make sure the drains are really clean. Note that the directions on the container say to run cold water, not hot. If you use my method, NEVER look down the drain and after dumping the cleaner down the drain, get out of the room. You can also leave a plastic margarine tub cover over the drain. This is caustic chemicals, so you need to use extreme caution. October 25, 2013
Rated 5.0 out of 5.0 by Cleared a clog nothing else could! I had a nasty clog in a pipe in my basement that of course drained my laundry tub and kitchen sink out to the rest of the drains in the house. We have been trying everything for almost 2 months and nothing worked, not even a 25' snake. I was just about to give in and call a plumber (sick of doing dishes in the tub and laundry at a family member's house) when we tried Crystal Heat. It smoked and fizzed and took multiple applications to get to the clog so far down the pipe, but it worked! We were shocked to run water this morning to check and not have it back up! January 6, 2013
Rated 5.0 out of 5.0 by Works great and fast! We've tried Draino and other products with poor results. This stuff opens the drains quick. You can even hear it as soon as you pour it in. August 6, 2009
Rated 5.0 out of 5.0 by Would definitely buy again. This worked perfectly to disolve hair and grime in my bathroom sink. April 22, 2014
Rated 5.0 out of 5.0 by The best drain cleaner This is by far the quickest drain opener I have ever used. Results were immediate and once my clog was opened I took the product to every drain in my house and performed a preventative flushing on all the remaining drains, especially bathroom sinks, showers, and tub drains. An awesome value for the money and I will now look to see what other products they offer that I can substitute for in my house. May 30, 2012
Rated 1.0 out of 5.0 by Product made problem worse! I had a slow drain in my tub and tried several different products to take care of the problem. I read some pretty good reviews on this product so I decided to try it. Before I tried it the water would cover my feet while taking a shower but would not take long to drain after the water was turned off. I wanted to be able to take a shower and not have the water back up. After 2 applications of this product, and I followed the instructions to the letter, the problem is a lot worse, not better. After a 10 minute shower the water fills the tub up half way and it takes over an hour to drain out. The label says to contact a plumber if the problem persists after 2 applications. Don't have the money for a plumber. Total waste of money and time. Very disappointed! March 18, 2015
Rated 4.0 out of 5.0 by Did the job I had a very slow shower drain past the trap where the pipe joins the main. After I cleared the trap I put this stuff in and added two cups of water to wash it to the blockage. The first application helped and the second one cleared it like new. April 13, 2015
Rated 5.0 out of 5.0 by This product works like no other. Crystal heat started working the second I poured it down the drain. The grease and gunk came to the surface, then dissolved within ten minutes. The drain has never been so clean. May 8, 2012
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Store Exclusive. This item is available for purchase in select stores only.