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Gauge Glass - Reflex
SKU: Gauge Glass - Reflex
John Moncrieff — Maxos Reflex Gauge Glass At John Moncrieff Ltd, we supply Maxos Reflex Gauge Glass, recognised worldwide for its clarity, strength, and precision engineering. ...
Luxury Yacht Marine Level Gauge
SKU: Luxury Yacht Marine Gauge
G31 Seeflex Gauge — Precision Meets Yacht-Grade Finish Designed for discerning yacht owners, the G31 Seeflex Gauge blends instrument-grade precision with a high-polished st...
Process Level Gauge - Reflex
SKU: Process Level Gauge - Reflex
Reflex Level Gauge — High-Contrast Liquid Level Indication The Reflex Level Gauge is available across ANSI Class 150 to ANSI Class 1500 and is ideally suited for low-pressu...
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...
Steam Level Gauge - Reflex
SKU: Steam Level Gauge - Reflex
Reflex Level Gauge — Clear, Reliable Indication for Industrial and Steam Applications The Reflex Level Gauge from John Moncrieff Ltd provides a highly visible, direct reading of l...
Tubular Gauge Glass - Standard
SKU: Tubular Gauge Glass - Standard
Borosilicate Tubular Gauge Glass John Moncrieff Ltd supplies borosilicate tubular gauge glass designed for accurate, durable liquid level indication in low-pressure environ...
Tubular Marine Gauge Type G21
SKU: Tubular Marine Gauge Type G21
Tubular Marine Gauge – For Non-Flammable Service at Sea The John Moncrieff Ltd Tubular Marine Gauge is engineered for duty in the marine and offshore sectors. Its tubular...
Type G31 Seeflex Marine Gauge
SKU: Type G31 Seeflex Marine Gauge
Seeflex Gauge — Reflex Glass for Marine & Offshore Flammable Service The Seeflex Gauge is a reflex glass level gauge engineered for tanks containing flammable liquids i...
Type G35 Seemag Marine Gauge
SKU: Type G35 Seemag Marine Gauge
Seemag Gauge — Magnetic Level Indicator for Marine & Industrial Applications The Seemag Tank Content Indicator is a high-quality yet cost-effective magnetic level gauge design...
Gauge Glass - Transparent
SKU: Gauge Glass - Transparent
John Moncrieff — Maxos Transparent Gauge Glass At John Moncrieff Ltd, we supply Maxos Transparent Gauge Glass, engineered for clarity, durability, and high-pressure performance. ...
Process Level Gauge - Transparent
SKU: Process Level Gauge - Transparent
Transparent Level Gauge — For Viscous, Interface & Coloured Liquids The Transparent Level Gauge is specifically designed for applications involving viscous, interface,...
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...
Steam Level Gauge - Transparent
SKU: Steam Level Gauge - Transparent
Transparent Level Gauge — Accurate Readings for Viscous, Interface & Coloured Liquids The Transparent Level Gauge is engineered for accurate level detection in viscous, interf...
Tubular Gauge Glass - High Pressure
SKU: Tubular Gauge Glass - High Pressure
John Moncrieff — High-Pressure Borosilicate Tubular Gauge Glass At John Moncrieff Ltd, we supply high-pressure borosilicate tubular gauge glass engineered for demanding sigh...
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...
Mica Sheild
SKU: Mica Shields
John Moncrieff — Mica Shields for Gauge Glass Protection When working with steam, hot alkaline, or acidic solutions, protecting your gauge glass is critical for maintaining system saf...
Process Level Gauge - Illuminators
SKU: Process Level Gauge - Illuminators
EEx Illuminator — Explosion-Proof Lighting for Level Gauges The EEx-rated Illuminator provides safe, efficient, and concentrated lighting for level gauge applications in h...
Steam Level Gauge - Bi-Colour
SKU: Steam Level Gauge - Bi-Colour
Bi-Colour Steam Level Gauge — Precision Visibility for High-Pressure Steam Systems The Bi-Colour Steam Level Gauge is designed specifically for high-pressure boilers operating up...
Tubular Gauge Glass - Heavy Wall
SKU: Tubular Gauge Glass - Heavy Wall
Extra-Heavy Wall Tubular Gauge Glass John Moncrieff Ltd supplies extra-heavy wall tubular gauge glass engineered to perform under extreme pressure conditions — delivering c...
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...
Process Level Gauge - Valves & Cocks
SKU: Process Level Gauge - Valves & Cocks
Shut-Off Devices — RAV Gauge Valves & DG Gauge Cocks Two isolation strategies. RAV gauge valves with metal seats and an integrated safety ball for critical duty; and DG...
Steam Level Gauge - Accessories
SKU: Steam Level Gauge - Accessories
Steam Level Gauge Accessories — Illuminate, Protect, Calibrate John Moncrieff Ltd supplies a comprehensive range of accessories for steam level gauges — from illuminators a...
Tubular Gauge Glass - Red Line
SKU: 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 accur...
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...






















