Products / Valves & Accessories / Protective Devices / Sight Glass and Moisture Indicators

Sight Glasses and Moisture Indicators

OVERVIEW

Sight Glasses and Moisture Indicators

GLC supplies Mueller Refrigeration sight glasses and moisture indicators engineered for reliable performance in refrigeration and air conditioning systems.

Built from high-quality materials and designed for clear, accurate system monitoring, these components help technicians verify system conditions quickly and maintain long-term equipment performance.

Connect With Us

Applications

Used in refrigeration and air conditioning systems to provide visual confirmation of refrigerant condition, moisture levels, and system flow. For use with TSD Filter Driers (sold separately).

Material

  • Brass alloy CW617 or C37700

Specifications

  • Large viewing window and indicator for better visibility
  • Designed for maximum flow and minimum pressure drop
  • Provides accurate identification of system conditions

Design Pressure (DP) and Maximum Abnormal Pressure (MAP): 700 psig, 48 bar
Continuous Operating Temperature (COT): -40°F/185°F, -40°C/85°C

Approvals & Certifications

  • UL/cUL Listed
  • EU Pressure Equipment Directive
  • UK Pressure Equipment Regulation
PRODUCT RESOURCES

Access detailed technical information, compliance documents, and installation guidance to support your project requirements.

Product Resources

View All

Sight Glass & Moisture Indicators

Great Lakes Copper - Canadian Refrigeration Price List # RP261 01-01-2026

Effective Date

01-01-2026

Files

Download XLS

Sight Glass & Moisture Indicators

Sight Glass Moisture Indicators

Effective Date

N/A

Files

Download PDF
EXCLUSIVE TECHNOLOGY

Canada’s Only Fully Integrated Copper Tube Mill

Great Lakes Copper leverages advanced casting, extrusion, and drawing processes in Canada’s only fully integrated copper tube mills. This end-to-end control ensures unmatched dimensional accuracy, surface cleanliness, and defect rates operating at true Six Sigma levels. Each tube is eddy current tested and laser-verified, so you can specify with confidence.

Connect With Us