32oz

Work great. I soaked overnight and it cleaned up really great! My glass was super dirty and it looks brand new. I recommend

I've used other products in the past like 420, and Grunge Off. I'd say this competes with Grunge Off pretty well and leaves 420 in the dust. My percolator I keep relatively clean in general but man it cleared every bit of grime out of the shower head that goes down the middle which is usually the worst part. My bowl was completely solid black, it's double walled so all that clear space you see in the pictures does get filled to the brim with resin. I let it soak for about half the day and had to do a lot of manual shaking and bending a bobby pin to break up the bigger pieces so I wouldn't say this is a no shake or scrubbing cleaner but my bowl is weird in general so I think it really depends on the piece and how accessible it is to scrub. My bong itself didn't get fully clean, as you can see there is still residue and I shook the ever living piss out of it with grandmaster (dumped back into the container) then with hot water. (Note: I don't have a good brush to get into the chamber, I'm sure if I did I would be able to get it all.) Overall it did get about 95% of the grime off so I'm happy with it and will def use it in the future. If I had to rate all of the products I've used in the past: tied for 1st. Grunge Off & Grandmaster, last place 420 (I hate this stuff lol). It's well worth the purchase especially since it's reliable and does a pretty solid job overall. As a final note Grunge Off seems to be more Isopropyl alcohol based with some other ingredients and my issue with it is that if you get resin on your fingers you gotta scrub pretty hard still to get it off even with applying a little grunge off onto the spot that has resin. HOWEVER Grandmasters does NOT have this effect. I can simply dip my finger into it, run it under hot water, and it comes right off leaving my fingers clean feeling and not sticky at all. This is a weird but important thing for me as I absolutely despise having dirty hands in any way.

Works really well. I was actually surprised how well it cleaned my pipe. I haven't cleaned it in soooo long and it had a lot of resin built up that I did have to let it soak for about 3 days. Now's it super clean and looks brand new. 10/10 recommend.

This stuff does work well... can take several hours to clean but it does get the job done. If you have extremely stained pieces it might not work at all so it by no means is a miracle worker. It does require scrubbing too if you have a really stained piece but after a couple passes and some light scrubbing I did manage to get my bubbler clean and after a LOT of elbow grease I got a Bong from over a year ago I had in my closet from black at the water level to almost perfect other than a couple scratches/vague resin here and there. If you don't want to scrub it I'm sure just plugging the pipe and leaving it overnight might work but this method is indeed time consuming so I'd recommend this for a time where you're not busy with anything else. It works, however there might be a feint waft of a residue smell left over after cleaning which is strange because the solution itself has a VERY overpowering sweet bubblegum/fruit punch smell and a prominent pink color. Give em points for general cleaning and reusability (side note: be sure you have a funnel if you want to save this stuff) because that's what counts the most but it is time-consuming and somewhat false advertising for sure.

This stuff is amazing. It works so much better than 420 and it’s waaay less expensive. I would recommend this for anyone who smokes.

Wow this wizard is truly magical. I had some Pieces with some stubborn grime that I haven’t seen clean in decades. A soak in this for a few hours and a few pipe cleaners brushed through is all it took.

I decided to try this product due to the fact it said so shaking or scrubbing. since almost all other products i've used you always gotta shake n scrub a bit. Unfortunately it was a lie. I used the product to clean 2 of my pieces both fairly small one a glass bubbler and another a glass pipe. at fist i had them soaked in the solution for about 2 hours, and when i took them out yea it cleaned them a it but there was still whole bunch of resin everywhere on botch pieces mainly the bubbler. so i did what the instructions on bottle said to rinse with warm water and re-soak them in the solution if it still needs more cleaning. This time i decided to just leave them fully soaking overnight since i thought maybe cause i use those pieces to smoke daily and they more resin built up than usual smokers, it might take a longer time for the solution to work properly. The next day in the afternoon i decided to check my pieces and to my surprise nothing major happened it was still dirty and still has a bunch off resin everywhere. when i rinsed them of with warm water , it cleaned it a bit more but still dirty as hell. i already had another piece i've been using and i hate scrubbing or shaking to clean my pieces which is why i decided to use this product, so i decided to not lose hope.! i threw away the old Zen master solution i had in my container i had been soaking my pieces in and to add the rest of the bottle in with my pieces and let them soak in there for about 1 week. I was thinking surely after 1 week been fully soaked no matter how dirty it should work right?? Well it didn't same ole scenario as before it clean it a bit but not fully till dirty resin and what not. So i just decided to scrub them with little wire cleaning kit and shake them in a ziploc bag with some solution and that did the trick! I HAD TO SCRUB AND SHAKE!!!!! I did noticed when i was scrubbing it was easier to clean probably since it was soaking for 1 week straight. I'm giving it 3 stars due to that i guess it did clean my pipes in the end & i did like the way the product smelled very soapy clean no chemical smell, but it didn't perform as it stated in the description.

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Just poured some into the bong and left it overnight and my work was basically done right there. just cleaned it a little with a brush and done. amazing stuff . highly recommend.