This precooler makes smoke so much smoother and cleaner. A bowl is even tastier when u use this, very satisfied!

Firstly, you cant go wrong for the price, but there are a couple minor flaws (expected for 30 bucks). I bought this along with the weed star 29>18 4 arm downstem and the odd little bulbs next to the male joint keep it from fitting all the way into the downstem, though it does maintain an airtight seal. Also it creates a lot of drag so when i take a hit I have to pull off the bowl, clear the precooler, and then pull off the precooler to clear the rest of the bong, otherwise it takes waaay too long. Still rips like a champ though!!

Its great, I had it hooked to a 20 inch bong, made it super smooth too bad I sold it to a friend

This piece is a nice little addition to have. It cools perfectly. It feels a liitle fragile, so be careful. Its still nice though!!!

This is a versatile little piece! Mine was a little different from the one in the pictures, since mine has a straight tube before the perc instead of a curvy one. This was actually a benefit though, since it enabled me to put another 18.8 diffuser between the inline perc and the bowl! The uneven percolating mentioned in other reviews can be helped by just tipping it left or right a little bit. Rips like a champ. Great piece!

I got this little piece with a WS Mahony straight tube, and I'm glad I got it, however I can see a few areas of improvement. The diffuser slots are uneven and of different sizes, which makes the last couple of holes inactive while drawing. Aesthetically this piece reminds me of something a maintenance man would put together; it's clean but looks like a collection standard parts welded together. Overall, it's a cool piece for the price, it works well and doesn't add much drag.

What a nice thick piece I received. its a nice thick inliner that I actually feel like I wont be breaking at all. I picked up the weedstar inline bong to hook up to this and I get disgustingly huge rips. Nice and cool. And I also like how its a standard joint so you can use it with your other 18.8's. The bowls nice and heavily made as well. Not a deep bowl, but nice and wide and can be used as an independent bowl for other 18.8's. so its like 2 separate, universal pieces as one and thats always killer. Pick it up, your bong will love you and so will your lungs.