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14.5? 18.8? 29.5? What do these numbers mean?


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#1
Stevie Ray Bong

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...in terms of glass.

I know they have something to do with the joint/downstem whatever. Does each bong have a certain number you need to buy all extra accessories at that same number? Like a 14.5 with a 18.8 wouldn't work or what???

:confused:

#2
ShatterWulf

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#3
joe420

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good explanation dude, i was wondering the same thing +rep

#4
Stevie Ray Bong

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All GonG (glass-on-glass) pieces have a certain size joints(the part where the bowl and downstem connect to the bong). Those sizes are 14.5mm, which is average, 18.8mm which is a bit bigger, and 29.2mm which is a size only used on the biggest bongs. Why bigger sizes? A bigger sized joint allows for a much bigger pull. While there are various adapters you can buy, all the fittings you buy for a piece will mostly be all the same size.


Thank you sir! +rep

So the most common joint size I'll run into is 14.5?

#5
NYCdeisel

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14.5 and 18 are pretty common, don't see too many 29's around though

#6
ShatterWulf

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#7
scottyboy90

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How do you know which you have?

#8
Duckyx

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#9
technyne09

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How do you know which you have?


Yeah I've always wondered, where is this measured or how would I find out what size to buy?

#10
Penknifelovelife

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#11
ShatterWulf

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Edited by ShatterWulf, 12 May 2009 - 07:18 PM.
grammar


#12
Guest_123ROOR_*

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Thank you sir! +rep

So the most common joint size I'll run into is 14.5?


It isn't that 14.5 is the most common, it is that 14.5 and 18.8 are the standard joints used for every day glass on glass bongs.

some people like the 14.5 because you have more control of the air flow and can slowly drag the hit nice and slowly.

the 18.8 is where you can fit more smoke and still have enough time to get a final breath of air to take the final rip and suck it all in because there is more air flow.

#13
swisher175

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All GonG (glass-on-glass) pieces have a certain size joints(the part where the bowl and downstem connect to the bong). Those sizes are 14.5mm, which is average, 18.8mm which is a bit bigger, and 29.2mm which is a size only used on the biggest bongs. Why bigger sizes? A bigger sized joint allows for a much bigger pull. While there are various adapters you can buy, all the fittings you buy for a piece will mostly be all the same size.


what does Joint Size: 18.8 mm > 14.5 mm mean?

#14
NYCdeisel

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Correct me if Im wrong, but I think that means that the bongs joint is size 18, but the downstem reduces and then fits a 14 size slide.

#15
swisher175

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Correct me if Im wrong, but I think that means that the bongs joint is size 18, but the downstem reduces and then fits a 14 size slide.


thanks

#16
pigpen03

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my 29 is gigantic.

i love it.

messias illusion from GC,

best bong for the price ive ever bought i love weed star.

#17
Decisions

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bump

So I just bought a bong from grasscity that says the joint size is 29.2mm >18.8mm diffuser downstem.  I want to buy a precooler to attach to it and its joint size is just 18.8mm will that still fit?  






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