Borosilicate Glass

Extraction tube sale!

* Extraction Tube Sale *

We are not only having the extraction tube sale, but we have other exciting new glass for sale in our sale section. Click on the image or the link below to see our sale page. 

All of our tubes are made in our shop in Eugene, Oregon, because we don’t buy glass and re-market it. We sell to you directly from our workbench.

Extraction Tube Sale
Sale at the Glass Underground!

New Barware Section and Custom Sizes Of Extraction Tubes!

We have shot glasses, and drinking straws in our barware section. Soon to have swizzle sticks and decanters, too! 

Check out our new barware section. We are adding new things all the time. We have low prices on blown glass shot glasses and glass drinking straws! You can also place custom size orders for extraction tubes! Whoot!

Three extraction tubes for $74!!!

3 Glass Extraction Tubes – value pack – 10, 12, and 16 inch

The Glass Underground has a Sale Page! 16 inch extraction tubes $32

Our Large 16 inch glass extraction tubes are on sale now!

On sale now – 44mm diameter 16 inch Duran Schott glass extraction tubes. $32 Highest quality laboratory glass.

Wholesale Glass Extraction Tubes
Wholesale Glass Oil Extraction Tubes
extraction tubes

Glass Extraction Tubes on Sale Now!

Glass extraction tubes – Starting at $17. From 8 inch to 16 inch sizes. Custom sandblasting available. All made of Duran Schott Laboratory Glass.

We know what you need! The small hole is exactly the right size for extraction. The conical nose gives these tubes extra strength. No “adapters” necessary. All tubes are properly annealed and made of the highest quality laboratory borosilicate glass. The big inch tubes we sell are perfect for making large batches of concentrates and oils. The other end is flared slightly to hold your filters. In addition, we have extraction tube kits which come with two screens and a tool free clamp! We are always adding new products. Let us know what you are looking for!


Glass extraction tubes – Why Duran Schott Glass?

Chinese vs. American or German glass is not referring to where the glassblower makes your piece. It is referring to what the piece is made from.

I use Duran Schott clear tubing and rod and American made colors, like Troutman, Northstar, and Paramore.
Many American glassblowers make pieces out of Chinese glass, because it is quite a bit cheaper than Duran Schott.  Duran Schott makes a far superior product than Chinese Glass and creates a better product. It takes a skilled glassblower to make a great piece of functional glass. Clint has 18 years of experience blowing glass. He anneals the glass properly. He takes great care to make our customers the finest products. Eugene Oregon is the glassblowing mecca of the world.

Simax and Pyrex are one step below Schott in quality (in my opinion). Any of these are better than Chinese. Duran Schott Glass melts silky smooth. It doesn’t bubble or crack easily. It is more durable.

All of our glass is made from high quality Borosilicate glass.  was first developed by German glassmaker Otto Schott in the late 19th century.

  • Highly resistant to temperature fluctuations and heat. Schott is ideal laboratory glassware for chemical processes and other processes where large amounts of heat are generated.
  • Highly resistant to corrosion caused by water, acids, saline solutions, alkaline solutions and organic substances, for durable products in corrosive environments.

Duran Schott Glass

glass extraction tubes

Oil extraction tubes – 3 pack on sale now!

On sale now! 3 pack of glass oil extraction tubes!

In this pack there is one 16 inch and one 10 inch 44 millimeter tubes and one 8 inch 32 millimeter oil extraction tube.  These Extra Large, Thick, Heavy Duty Concentrate Extraction Tubes, are made of German Duran Schott glass. They are shipped in a tube that will protect your glass when you are not using it. The 16 inch and 10 inch extraction tube is 44 mm (about 1 3/4 inches) in diameter with a 4 mm wall thickness. The 8 inch extraction tube is 32 mm (about 1 1/4 inches diameter with a 4 mm wall thickness. 

3 Glass Extraction Tubes – value pack – 10, 12, and 16 inch

Extraction Tubes

On sale now for $40! Extraction Tube Kit – 20 Inch – Duran Schott Glass

On sale now for $40!  Extraction Tube Kit – 20 Inch – Duran Schott Glass– with 50 micron Stainless Steel Screens and Tool Free Clamp. We don’t sell Chinese glass. The 20 inch extraction tube is 32 mm (about 1 ¼ inches) in diameter with a 4 mm wall thickness.

Glass Extraction Tube
Glass Extraction Tube
extraction tubes
Wholesale glass extraction tubes
Extraction Tube
Glass Extraction Tube

Wholesale glass extraction tubes

Wholesale glass extraction tubes