Oil Sight Glass Store

Introducing the Monolith.

Our one-piece design meets & exceeds new refinery standards.

Machined from a solid piece of acrylic. To be clear, it’s clear from the start.

Available in NPT standard sizes. These water finders are ready to install on pumps, motors, turbines, or reservoirs.

New design standard, same reliable oil sight glass.   Buy now or Learn More