Description
The Sporlan Controls CSG-307-S (SKU 409997) is a combination filter drier and sight glass unit engineered to protect refrigeration and air conditioning systems from moisture, acid, and particulate contamination. By integrating a sight glass directly into the drier body, this unit allows technicians to simultaneously monitor refrigerant flow condition and system moisture level — eliminating the need for a separate sight glass installation and reducing overall system complexity.
Product Overview
Sporlan is a trusted name in refrigeration controls and components, and the CSG-307-S upholds that reputation with a robust, field-proven design. The 7/8″ connection size makes it well-suited for medium-to-large capacity refrigeration and air conditioning systems. The combination design streamlines installation while delivering the dual functionality that service professionals demand.
Key Features
- Combination filter drier and sight glass in a single, compact assembly
- 7/8″ sweat (ODF) connections for straightforward field installation
- Integrated sight glass for real-time refrigerant flow and moisture indication
- High-efficiency desiccant core removes moisture, acid, and solid contaminants
- Protects compressors, expansion valves, and other system components from contamination damage
- Suitable for use on liquid lines in refrigeration and air conditioning systems
- Durable construction designed for long service life under normal operating pressures
Benefits
- Reduces installation time and material costs by combining two components into one
- Enables quick visual system diagnostics without additional fittings or tools
- Helps maintain system efficiency and extends equipment life by keeping the refrigerant circuit clean and dry
- Backed by Sporlan’s decades of expertise in refrigerant flow control
Typical Applications
- Commercial refrigeration systems
- Air conditioning equipment
- Heat pump systems
- New installations and system retrofits or recharges







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