We also sell 10 and 16 inch tubes in the 32 mm diameter and 12 and 16 inch 44 mm diameter tubes! Check our listings! We know what you need!
If you don’t see your size here, we do custom size orders. So, send us a message, and we’ll make what you need!
All of our tubes are made in our shop in Eugene, Oregon, U.S.A.
The small hole is exactly the right size for extraction. No “adapters” necessary. The conical nose gives these tubes extra strength. The other end is flared slightly to hold your filters. All tubes are properly annealed and made of the highest quality laboratory borosilicate glass. Our big 16 inch tubes are perfect for making large batches of concentrates and oils.