Also known as Pyrex and Schott glass, borosilicate sheets are heat resistant, clear, and have a super-smooth surface. They're used in a range of applications, from high-temperature viewports to 3D printing.

Commonly used as sight glass.

Also called Pyrex and Schott glass, these glass tubes resist clouding and pitting and are highly chemical and heat resistant.

Able to withstand temperatures up to 2100° F, this quartz glass is useful in high-temperature applications that also require optical clarity, such as high-intensity lighting, fiber-optic production, and optical lens systems.

Very thin yet extremely durable, this glass has been chemically strengthened to maximize toughness and scratch resistance. It's often used for mobile device screens.

Also known as Macor, these glass-mica ceramic sheets and bars withstand temperatures up to 1470° F.

Machine complicated shapes and precision parts from these glass-mica ceramic sheets in a fraction of the time it would take using other types of fired ceramic.

Cast acrylic is easier to machine than extruded acrylic. It's comparable to Lucite and Plexiglas® Acrylic.

Cast acrylic is easier to machine than extruded acrylic. It's comparable to Lucite and Plexiglas® Acrylic.

A static-dissipative coating on this cast acrylic prevents electrostatic discharge from damaging sensitive electronic equipment.

With a clear coating that provides protection from abrasion, UV light, and harsh cleaners, this polycarbonate is often used to create transit shelters and equipment shields.

Often used in security doors and windows to protect against forced entry, this laminated polycarbonate is nearly impenetrable.

Because PVC resists acids and alkalies, it is often used in tanks and chemical-processing applications where visibility is essential.

A satin texture makes these PETG sheets semiclear—you can see light from the other side, but not detailed shapes—as well as more resistant to scratching and glare than standard PETG.

These sights have a glass window.

View tank contents from multiple angles through the plastic domed window.

Easily view liquid movement and level changes from a distance—these sights have an indicator ball inside the glass window.

With a thick glass window fused to a metal body, these sights resist cracking at high pressures.

Mount these sights from the inside of your tank and secure with a lock nut.

Add a window to your high-vacuum system. With a pane of borosilicate glass sealed inside a high-vacuum CF flange, these sights bolt onto vacuum chambers, tee fittings, and manifolds.

Weld these sights to single-wall tanks.

Replace existing gauge glass or combine with valves and guard rods to build your own level indicator.

Monitor liquid level in applications that have vibration, high pressures, and high temperatures. These indicators are also known as armored level gauges.

Combine a pair of valves with a gauge glass and four guard rods to build a complete level indicator.

Use these gaskets with heavy duty level indicators to seal the glass.

The nylon body and window make these indicators shatter resistant.

Mount these indicators on the outside of tanks in food, pharmaceutical, and other sanitary environments to monitor their liquid levels.

These indicators mount from the outside of your tank.

For use with water, hydraulic fluid, and diesel, install these gauges through the top of your tank.

The low-profile body fits in areas with limited clearance.

The indicator moves when flow is present, so it’s easy to visually confirm flow from a distance.

Peer through the glass on these flow sights to see what’s happening in your high-vacuum line.

Compact in size, these guards can be mounted directly to a machine or workbench. Panels are framed in aluminum T-slotted extrusions to provide multiple points of attachment for other components.

Combine posts, panels, and doors to create a barrier around equipment.