Level Sight Glass | McMaster-Carr

Filter by

System of Measurement

Pipe Size

Material

Shape

For Use With

Alcohol-Based Solvents

Hydraulic Fluid (Petroleum Based)

Connection Center-to-Center

Thread Type

UN/UNF (SAE Straight)

Length

Maximum Temperature

Overall Height

Maximum Pressure @ Temperature

Window Height

Minimum Temperature

Gender

Fitting Connection

Window Material

RoHS

Compliant with Exemptions

Not Compliant

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

REACH

Compliant

Not Compliant

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

Connects To

Diameter

Thread Size

Window Diameter

1,428 Products

Liquid-Level Gauges

Liquid-Level Indicators

High-Pressure Oil-Level Indicators

Monitor fluid levels in pressurized applications, such as hydraulic systems

89 products

Oil-Level Indicators

Monitor fluid levels in gear boxes, crank cases, and other reservoirs

122 products

Liquid-Level Indicators with Shut-Off Valve

Stop the flow so you can clean and replace gauge glass without removing the indicator

16 products

Build-Your-Own Liquid-Level Indicators with Shut-Off Valve

Build your own level indicator with valves, gauges, and guard rods

120 products

Flexible Easy-View Liquid-Level Indicators

Bend around the contours of your hydraulic fluid, oil, or water tank

14 products

Chemical-Level Indicators

Check the level of liquids containing chemicals such as boric acid and sodium bicarbonate

14 products

Easy-View Oil-Level Indicators

Made with clear plastic so you can check fluid levels from any angle

15 products

Easy-View High-Pressure Oil-Level Indicators

The nylon body and window resist shattering and allow you to check levels from any angle

7 products

High-Pressure Oil-Level and Temperature Indicators

Check the temperature and the fluid level in a pressurized system

33 products

Shatter-Resistant Oil-Level and Temperature Indicators

Monitor fluid level and temperature through a durable nylon window

8 products

Heavy Duty Liquid-Level Indicators

Withstand vibration, high pressures, and high temperatures

19 products

Oil-Level and Temperature Indicators

Monitor the fluid level and temperature in gear boxes, crank cases, and other reservoirs

14 products

Liquid-Level Gauges

Liquid-Level Gauges for Drums

Measure water, hydraulic fluid, or diesel fuel level in your drum

20 products

Chemical-Resistant Vertical-Mount Liquid-Level Gauges for Tanks

Stainless steel float and float rod resist corroding from chemicals

23 products

Vertical-Mount Liquid-Level Gauges for Tanks

Install through the top of tanks containing water, hydraulic fluid, and diesel

139 products

Other Products

Gauge Glass

Create or repair liquid-level gauges to monitor fluid levels in containers

138 products

Sights

Observe and monitor the contents of pipes, tanks, and other containers

243 products

Gauge Glass Gaskets

Seal the glass on level indicators to monitor liquids without leaks

14 products

Glass

Clear and highly heat and chemical resistant; often used in sights, lighting, and lab equipment

337 products

Flow Sights

Visually confirm flow and inspect liquid color and clarity

154 products

Ceramic

Hard and wear resistant, it also withstands corrosion and high temperatures

10 products

Hose and Hose Fittings

Flexible and stronger than tubing; often used to convey liquids and gases under pressure

2 products