This funnel was designed to perfectly fit over a standard Doob Tube to assist in loading. Current funnel has a 40mm diameter (1.57 inches) but can be adjusted to fit any size grinder if necessary.
Need something flexible and portable? Check out our new and improved Flexible Doob Tube Funnel!
Looking for a custom size funnel to fit your storage tube? Contact us!
I like the convenience of this when paired with doob tubes
Posted by Nick N. on Feb 6th 2018
First off, I want to say the customer service is great! My first funnel had a little bit of rough texture inside, and I reached out on the contact page, and Mike emailed me right away and sent out a replacement completely free of charge. As for the funnel, I find it fits perfectly over the doob tubes that I have (also from Delta 3d) and makes it extremely convenient to transfer excess herbs from grinder to tube. Definitely rigid plastic, so you won't be able to squish this to fit comfortably in a pocket, but I've never had a need to travel with it, since I fill the tubes at home. Great quality! Thank you Mike and Delta!
Easily enables tube loading
Posted by Unknown on Dec 30th 2017
The funnel helps to easily load tubes. Just attach to a doob Tube and pour your herbs into the funnel. The herbs go into the tube.
Posted by Igor on Jul 5th 2016
If you want to fill Doob Tube without any hassle.
A Must have!
Posted by data_eater on Jun 8th 2016
I couldn't imagine how clunky it would be to fill your doobtube without this. Its awesome!