i have this on a 15" hi si beaker bottom and it's great. i totally agree with bekabam that i wish there was a replacement part. also i'd prefer the roadrunner have a pull off as i really don't use tubes with carbs. bottom line, for $40, it's totally worth it.

I love this pre-cooler, it works perfect with my Molino 'Dirty Harry' bong. I have one problem though, the tip of the slide/downstem broke off and no where do I see a replacement for it.

I understand it is a complicated piece because it is a slide AND a downstem all in one, but there is no such replacement anywhere online or offline! :( If there is another way to order such a piece, I'd love for some information. Thank you grasscity + Molino!

this piece is perfect. put in some hot water, then cold water and ice in the tube. milk it up