• Tubular Gauge Glass - Red Line

Tubular Gauge Glass - Red Line

  • Product Code: Tubular Gauge Glass - Red Line

Our tubular gauge glass features enhanced red and white meniscus lines for improved visibility and accuracy. These lines are applied using a specialized bonding process that does not require etching, ensuring minimal impact on pressure ratings.


Key Benefits:

  • Enhanced Visibility: Red and white lines provide clear and precise level indication.
  • No Pressure Rating Reduction: Low-temperature curing process maintains original pressure capabilities.
  • Durable and Reliable: Ensures long-lasting performance and accuracy.


Ideal for applications requiring accurate and easy-to-read liquid level measurement.



Standard Tank Gauge

Standard Tank Gauge

SKU: Standard Tank Gauge

Our Standard Tubular level gauge is suitable for level monitoring on tanks and similar sealed vessels. The gauges are available in both carbon and stainless steel. Delivery; 1 week or less. They can b...

Quickmount Tank Gauge

Quickmount Tank Gauge

SKU: Quickmount Tank Gauge

Our most popular Tank Level Gauge is designed for general industrial use. The unique isolating valve and collar design, allows for maintenance of the gauge column without tools and the need to drain t...

Boiler Water Level Gauge

Boiler Water Level Gauge

SKU: Boiler Water Level Gauge

Our standard Boiler and Water Level Gauge is offers a robust design suitable for lower pressure Boilers and General water Level applications. Auto Shut off Valves as Standard, Lever Operated, Superior...

Marine Gauge Push Button

Marine Gauge Push Button

SKU: Marine Gauge Push Button

The Marine gauge is designed for use within the marine and offshore industries. Due to its tubular design this gauge is suitable only for use with non-flammable liquids. For flammable see either our G...

Mini Gauge

Mini Gauge

SKU: Mini Gauge

Mini Gauge is an effective yet simple tubular gauge. Its valve less connection ends screw directly into the vessel and commonly used for compressor lube oil tanks or small water tanks or in the case...

Oil Sights

Oil Sights

SKU: Oil Sights

Our Oil Level gauge is a very simple brass and heat proof glass tubular level gauge unit to provide level indication, primarily on oil tanks. As standard they are fitted from the base, but a double b...

CPI Gauge

CPI Gauge

SKU: CPI Gauge

The CPI Tubular Gauge (Chemical and Process Industries) is designed to provide direct level observation of chemicals and solvents.For applications with higher pressure requirements, or where a more r...

Push Button Gauge

Push Button Gauge

SKU: Push Button Gauge

Our basic push button tubular level gauges provide a very simple level monitoring solution. They offer a clear rigid PVC tube, that can be cut to any length to suit your application.The unit is fitte...

Rubber Cones / Square Section Rubbers

Rubber Cones / Square Section Rubbers

SKU: Rubber Cones

John Moncrieff offers a wide range of high-quality rubber cones and square section rubbers designed to provide reliable sealing for glass tubes in various boiler applications. These precision-enginee...

Tags: tubular gauge glass, red and white lines, meniscus lines, enhanced visibility, liquid level measurement, gauge glass, process control, industrial instrumentation, visibility enhancement, glass gauges, gauge glasses