Sight Glass Manufacturing

Both ends of the sight glass are ground square. Pipe sight glass with pipe flanges is also available.

Extra Long Sight Glass Pyrex (custom length)

Greatglas specializes in manufacturing extra long sight glass made from borosilicate glass for the oil, beverage, food, and agricultural industries.
We routinely make 10 foot sight glasses.
Our record is a 1 1/2" od x 20 foot long sight glass.
All 5 of them arrived in good condition at their destination.

We normally have a nominal box charge for our sight glasses of $20 for the 6 foot sight glasses up to $100 for a 20 foot sight glass.
The box will normally hold multiple sight glasses.
We ship sight glasses all over the world.

If you need custom length sight glasses that are shorter or longer than these mentioned above, we can manufacture them for you.

If you need intermediate outside dimensioned or heavy walled sight glass, we have many sizes in stock or can manufacture them according to your specifications.

Conbraco, Noris, Tomco Sight Glass (various models)

Owners of Conbraco, Noris and Tomco equipment looking for replacement sight glass can order the replacements here and even get rush service delivery, if needed.

Numerous sight glass models are in stock and our customers can quickly find what they want. If you are looking for replacement of Conbraco, Noris, Tomco sight glass please click the link below.

Replacement Sight Glass for Conbraco, Noris, Tomco.
   * Same Day Shipping Available

Need replacement sight glass immediately?
You will appreciate the RUSH service that we provide so we can ship the sight glass to you on the same day if required.