Columnar Sight Glass

Columnar Sight Glass

The Column is a crystal-clear oil level sight glass that allows you to visually inspect the condition and level of oil in pumps, gearboxes, storage tanks and reservoirs. It features a one-piece design with 1-inch NPT threads at each end and includes a 3-micron breather. The Column can also be plumbed to vent back into the equipment’s head space. Two tamper-proof level rings mark the idle and running oil level. Each ring is made of durable polycarbonate and secured in place with a hex screw.


Application: Drain ports.

Dimensions: Varies (see drawing).

Recommended Temperature: -40°F to 200°F (-40°C to 93°C).

Recommended Pressure: 65 psi./4.5 bar.

Materials: TritanTM crystal clear and chemically resistant material.

Outdoor Compatibility: UV-resistant to protect against long-term sun exposure.

Chemical Compatibility: Resistant to mineral and synthetic oils that are compatible with PMMA (acrylic) plastic.

Includes: Column sight glass, level rings, steel thread adapter and breather OR vent tube kit.

Available lengths: 3, 6, 9, 12, 15, 18, 24, 36, 48, 60

Available treads: 3/8, 1/2, 3/4, 1″ NPT

Available lengths: 
3, 6, 9, 12, 15, 18, 24, 36, 48, 60

Available treads: 
3/8, 1/2, 3/4, 1″ NPT