Ez Clean Pipe Cleaner Glass, Metal, Pyrex, 16 oz., Pack of 2

I've been using this for 7 years to clean my glass, it works wonders and you can reuse it again and again till its gone or too gross to clean anymore, I can get a few months out of one order of the 2 pack

Always works f'ing great. Dissolves caked resin with no problem! If you have several glass pieces that are SUPER resin-y (hella clogged ones) and you're trying to clean them all, you'll probably have to use both bottles. I definitely wait too long between cleanings (I know, it's gross!), so I have to use both bottles to clean up 4-6 filthy medium sized pipes.Recommendation: maximize your usage of Grunge Off by soaking your glass in it for after 30 mins to 2 hours, depending how dirty it is. Remove it and then run the piece under warm running water. Be fascinated by all of the nasty crud that is spewed out. If you have pipe cleaners, this is the time to use them! By rinsing out the pipe, the solution won't wasted dissolving gunk that has already loosened up. You can do this a number of times through the cleaning.

This stuff is amazing. I have 2 brass pipes. One had 5 years worth of resin, one I've cleaned periodically so there wasn't as much build up. I soaked the first one overnight and it was like new. The other I soaked for 3 hours and it also was like new. I've reused the same stuff a half dozen times with the same result, so these 2 bottles should last years. I found my brass doesn't stick and one comes apart and goes back together easily. I had problems with it sticking with alcohol and salt. Do not leave anything with a rubber tip in overnight, however. It will dissolve rubber.

this is the best cleaner you will ever find. no matter how dirty, or unscrubable your glass this will clean it. and when your done, pour it in to a container to soak any smaller miscellaneous glass that you might have. This will give you great cleaning multiple uses and biodegradable. this is well worth the money.

This product must work well. My son keeps buying it and he smoke a lot of weed. Remember to take care of your tools and they will serve you for a long time. That's what I always told him. Looks like he listens to my advice. Except about smoking pot all day. That one doesn't seem to stick. At least his bongs are clean. Maybe this stuff will work on my welder.

Grunge Off is my favorite glass cleaner. This stuff works better than any other pre-prepared solution I've tried. You also Can't beat the price offered here on Amazon, as opposed to in a retail store.Just remember: Grunge Off is a GLASS cleaner. Don't use this in your bubbler, or any pieces which may contain paint on the inside. Trust me, I had zero idea that coloring had been placed on the inside of ANY smoking apparatus, I tried Grunge Off on the bubbler and the color began to come off, as if I were using alcohol. Oops hehYou can use this on color-change pipes and it will return them to their original look. Using the pipe after cleaning the pipe will continue to change colors again. So, this does not affect that type of pipe.Grunge Off is my buddy!.There is nothing else out there that can clean some seriously tar and wax ridden glass like this magical Biodegradable skin-safe solution. The liquid feels like the soapiest slick soap of all time.You're soaking in it! Grunge Off Ez Clean Pipe Cleaner 16oz Glass, Metal, Pyrex (2 Pack)

I have been using Grunge Off products for years. This glass cleaner is by far the most effective, easy to use, multi purpose cleaner. Can be reused for months depending on how much it’s used. Can be used by soaking for a long period of time and/or via carefully shaking. Forever using this to clean any of my glass products!!

This stuff is fantastic and *reusable*. I had a container last me 4 years once; I would often add water and eventually that diluted it to the point of no return so I had to get some more. I do NOT recommend adding water if you can help it; it lost some volume over the years, haha.