• Tubular Gauge Glass - Red Line

Tubular Gauge Glass - Red Line

  • Product Code: Tubular Gauge Glass - Red Line

Red & White Line Tubular Gauge Glass

John Moncrieff Ltd supplies tubular gauge glass with enhanced red and white meniscus lines designed to improve visibility and accuracy in liquid level measurement. These indicators are applied using a specialized bonding process that eliminates the need for glass etching, preserving the full structural and pressure integrity of the tube.

Key Benefits

  • Enhanced Visibility: Red and white contrast lines deliver clear, accurate level indication across a wide range of lighting conditions.
  • No Pressure Rating Reduction: Low-temperature curing process maintains the tube’s original pressure rating and mechanical performance.
  • Durable & Reliable: Bonded surface markings ensure long-term adhesion, clarity, and resistance to thermal cycling.

These high-visibility gauge glasses are ideal for applications requiring quick, precise liquid level monitoring — including chemical processing, boiler systems, and industrial tanks where accuracy and operator readability are critical.

Technical Downloads:


Standard Tank Gauge

Standard Tank Gauge

SKU: Standard Tank Gauge

Standard Tubular Level Gauge The John Moncrieff Ltd Standard Tubular Level Gauge is designed for reliable and accurate level monitoring on tanks and sealed vessels. Availab...

Quickmount Tank Gauge

Quickmount Tank Gauge

SKU: Quickmount Tank Gauge

Quickmount Tank Level Gauge The John Moncrieff Ltd Quickmount Tank Level Gauge is our most popular unit — engineered for general industrial use where reliability, serviceab...

Boiler Water Level Gauge

Boiler Water Level Gauge

SKU: Boiler Water Level Gauge

Standard Boiler and Water Level Gauge The John Moncrieff Ltd Standard Boiler and Water Level Gauge offers a robust and reliable design ideal for lower pressure boilers and...

Marine Gauge Push Button

Marine Gauge Push Button

SKU: Marine Gauge Push Button

Marine Gauge – Tubular Level Gauge for Marine & Offshore The John Moncrieff Ltd Marine Gauge is engineered for marine and offshore duty. Its tubular design delivers cle...

Mini Gauge

Mini Gauge

SKU: Mini Gauge

Mini Gauge – Compact Tubular Level Gauge The John Moncrieff Ltd Mini Gauge is a simple, effective valveless tubular level gauge. Its connection ends screw directly into the...

Oil Sights

Oil Sights

SKU: Oil Sights

Oil Level Gauge – Compact Brass & Heat-Resistant Glass Assembly The John Moncrieff Ltd Oil Level Gauge is a simple yet robust brass and heat-proof glass tubular level...

CPI Gauge

CPI Gauge

SKU: CPI Gauge

CPI Tubular Gauge (Chemical & Process Industries) The John Moncrieff Ltd CPI Tubular Gauge delivers direct, no-nonsense level observation for chemicals and solvents in...

Push Button Gauge

Push Button Gauge

SKU: Push Button Gauge

Push-Button Tubular Level Gauge John Moncrieff Ltd push-button tubular level gauges deliver a straightforward, cost-effective solution for visual level monitoring. A clear,...

Rubber Cones / Square Section Rubbers

Rubber Cones / Square Section Rubbers

SKU: Rubber Cones

John Moncrieff — Rubber Cones & Square Section Rubbers for Boiler Applications At John Moncrieff Ltd, we supply a wide range of high-quality rubber cones and square section rubber...

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