The Castel 3910/55 moisture indicator is engineered to help monitor moisture levels within refrigeration and air conditioning systems. Featuring a 5/8″ male flare connection, it integrates smoothly into compatible refrigerant lines and provides a clear viewing window that signals moisture presence. With a durable and professional-grade build, this indicator is ideal for installation, inspection, and routine maintenance in commercial and industrial cooling systems where early moisture detection is critical.

Key Benefits

Provides clear visual indication of moisture in the system
Helps detect and monitor moisture contamination early
Supports accurate system diagnostics and maintenance checks
Durable construction for reliable long-term use
Improves reliability and efficiency of refrigeration and HVAC systems

Specifications

Product Type: Moisture Indicator
Model: 3910/55
Connection Size: 5/8″ Male Flare
Category: Refrigeration Valves & Accessories
Sub-Category: Sight Glasses & Moisture Indicators
Application: Refrigeration and air conditioning systems
Function: Visual monitoring of moisture condition
Brand: Castel

Applications

Moisture level monitoring in HVAC systems
Refrigeration line inspection
Commercial and industrial cooling maintenance
Professional HVAC and refrigeration servicing

FAQs

What does the Castel 3910/55 moisture indicator do?
It visually indicates moisture presence to help technicians monitor system condition.

What connection type does this indicator use?
It features a 5/8″ male flare connection.

Why is moisture monitoring important?
Moisture can lead to corrosion, ice formation, and reduced cooling performance, so early detection helps prevent issues.

Is this indicator suitable for commercial systems?
Yes, it’s designed for refrigeration and air conditioning applications in professional settings.

Does it support efficient maintenance checks?
Yes, the clear viewing window helps improve accuracy of diagnostics and servicing.