The Castel 3770/11 liquid and moisture indicator is engineered to provide a reliable visual check of refrigerant state and moisture levels in refrigeration and air conditioning systems. Featuring a 1.3/8″ copper braze connection, it integrates smoothly into compatible refrigerant lines and offers a clear window for technicians to assess system condition at a glance. Built with precision and durability, this indicator is ideal for professional installation, inspection, and maintenance in commercial and industrial cooling systems where early moisture detection helps prevent performance issues and prolong equipment life.

Key Benefits

Provides clear visual monitoring of refrigerant condition and moisture
Helps detect liquid floodback and moisture contamination early
Improves system diagnostics and maintenance accuracy
Durable construction for long service life
Supports efficient and reliable refrigeration system operation

Specifications

Product Type: Liquid and Moisture Indicator
Model: 3770/11
Connection Size: 1.3/8″ Copper Braze
Category: Refrigeration Valves & Accessories
Sub-Category: Sight Glasses & Moisture Indicators
Application: Refrigeration and air conditioning systems
Function: Visual refrigerant and moisture condition monitoring
Brand: Castel

Applications

Refrigerant line inspection in HVAC systems
Moisture detection in refrigeration equipment
Commercial and industrial cooling systems diagnostics
Professional HVAC and refrigeration servicing operations

FAQs

What does the 3770/11 liquid and moisture indicator do?
It visually shows refrigerant condition and moisture presence to help technicians monitor system health.

What connection type does this indicator use?
It features a 1.3/8″ copper braze connection for secure line integration.

Can it help detect moisture contamination?
Yes, it allows early detection of moisture and liquid issues in the system.

Is it suitable for commercial refrigeration systems?
Yes, it’s designed for professional HVAC and refrigeration applications.

Does it support accurate diagnostics and maintenance?
Yes, the clear viewing window improves system inspection and service accuracy.