Tempered Sight Glass Sheet – Circle Observation Lens (100mm To 115mm Diameter)

Need to peek inside your boiler or industrial setup?

This tempered sight glass sheet is exactly what you’re looking for.

It’s a solid circular observation lens, diameter ranges from 100mm up to 115mm.

Brand new, never opened, no scuffs or scratches.

Made of tough tempered glass—holds up under pressure and heat.

Commonly used in boilers, furnaces, or pressure vessels.

MPN says Boiler Sight Glass, brand is Unbranded, but don’t let that fool you—it’s legit.

No UPC.

Simple, sturdy, gets the job done without any fluff.