Redline Sight Glass
5/8" OD tubular redline gauge glass in 12" to 72" lengths for clear liquid level readings on tanks, vessels and treaters. Rated up to 370 psi.
About Redline Sight Glass
Each tube has a red stripe bonded between two white enamel lines along its length. When liquid fills the tube, it magnifies the red stripe, so the liquid column reads as a wide red band against the thin line above it. Even clear fluids like water and condensate are easy to read from a distance.
Tubes install in standard gauge cocks with a 5/8" glass connection. Maximum working pressure decreases as tube length increases, so select the shortest length that covers the level range you need.
Specifications at a Glance
| Part No. | Length | Max. Temp. | Max. Pressure |
|---|---|---|---|
| RLG-12 | 12" | 150°F | 370 psi |
| RLG-18 | 18" | 150°F | 290 psi |
| RLG-24 | 24" | 150°F | 265 psi |
| RLG-36 | 36" | 150°F | 205 psi |
| RLG-48 | 48" | 150°F | 165 psi |
| RLG-60 | 60" | 150°F | 135 psi |
| RLG-72 | 72" | 150°F | 100 psi |
All tubes are 5/8" OD with a 3/32" wall. Install in gauge cocks with ball checks and use guard rods or shields.
Get the Right Part the First Time
Sizes and configurations vary by application. Send us the details below and our team will confirm the spec, check stock and come back with a firm quote.
Start a QuoteWhat to Include in Your Request
- Tube length
- Quantity
- Gauge cock or sight glass assembly the tubes will install in
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