Why are glass pipes for activated charcoal filters so rare?

https://feddit.de/post/4073336

Why are glass pipes for activated charcoal filters so rare? - Feddit

I’m thinking about getting my first hand pipe and have been looking around. When I roll a joint, I always roll with charcoal filters, and I’d like to keep using filters when smoking a pipe. Now, this is the absolute standard for tobacco pipes, but for weed bowl pipes, it’s apparently not? I don’t get it, it filters out harmful stuff, it’s cheap, easy, already normal for joints, but somehow, no nice glass bowl pipe I find has a mouthpiece that allows for charcoal filters. Am I dumb and there’s a trick to using filters with those pipes I’m not getting?

I am unsure about these types of filters. I’m a big fan of bongs/bubbler and don’t normally smoke joints. However I do know of moose labs. They have filters for joints, bongs, ect.

If this is what you’re talking about then I think the reason for this is glass had pipes have such a huge array of sizes that it’s hard to make a filter for them.

pipes have such a huge array of sizes that it’s hard to make a filter for them.

See, that’s what I’m not getting: Mouthpieces for pipes usually don’t vary that much - because they always have to fit a human mouth. They already end in some sort of the same shape. And the tobacco smokers have figured this out for a hundred years now: No matter how absurd your pipe is

they all have this same system where a filter can be inserted between pipe and mouthpiece.

You can make this super short or long, all you need is a tight, hollow space to fit a 6-9mm filter. They literally have an industry standard for that.