The Castel 3910/44 moisture indicator is engineered to help HVAC and refrigeration technicians monitor moisture levels inside cooling systems. Featuring a 1/2″ male flare connection, it integrates easily with standard refrigerant lines and provides a clear viewing window that indicates moisture presence. Durable and reliable in construction, this indicator is ideal for professional installation, inspection, and maintenance work in commercial and industrial refrigeration and air conditioning applications where early moisture detection helps prevent performance issues and extend equipment life.

Key Benefits

Provides clear visual indication of moisture presence
Helps detect moisture contamination early to protect system components
Supports accurate diagnostics and maintenance operations
Durable design for professional HVAC and refrigeration use
Improves efficiency and reliability of cooling systems

Specifications

Product Type: Moisture Indicator
Model: 3910/44
Connection Size: 1/2″ 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

Monitoring moisture levels in HVAC and refrigeration systems
Commercial and industrial cooling maintenance
Refrigerant line inspection
Professional HVAC servicing operations

FAQs

What is the purpose of the 3910/44 moisture indicator?
It provides a visual indication of moisture presence within a cooling system.

What connection type does this indicator use?
It features a 1/2″ male flare connection.

Why is moisture detection important?
Moisture can cause corrosion, freezing, and reduced system efficiency, so early detection helps prevent damage.

Is this indicator suitable for professional HVAC servicing?
Yes, it’s designed for commercial and industrial refrigeration and air conditioning applications.

Does it improve system maintenance efficiency?
Yes, a clear viewing window makes it easier to assess system condition during checks.