Description
The Sporlan Controls CSG-304-S (SKU 409999) is a combination liquid line filter drier and sight glass engineered to protect refrigeration and air conditioning systems from moisture, acid, and particulate contamination. The integrated sight glass allows technicians to visually monitor refrigerant flow and system moisture content in a single, compact assembly — eliminating the need for a separate sight glass installation and reducing potential leak points in the liquid line.
Key Features
- Combination filter drier and sight glass in one compact unit
- 1/2″ ODF sweat connections for easy installation
- Removes moisture, acid, and solid contaminants from the liquid line
- Integrated sight glass for visual inspection of refrigerant flow and moisture indicator
- Reduces installation time and potential leak points versus separate components
- Compatible with a wide range of CFC, HCFC, and HFC refrigerants
- Durable construction designed for long service life in demanding HVAC/R applications
Product Specifications
- Brand: Sporlan Controls (Parker-Sporlan)
- Model: CSG-304-S
- SKU: 409999
- Connection Size: 1/2″ ODF (sweat)
- Type: Combination Liquid Line Filter Drier with Sight Glass
- Application: Liquid line refrigerant protection and visual monitoring
Applications
- Residential and light commercial air conditioning systems
- Refrigeration equipment liquid lines
- Heat pump systems
- New installations and system changeouts requiring moisture and acid protection
Sporlan Controls, a Parker Hannifin brand, is a trusted industry leader in refrigeration flow controls and filtration products. The CSG-304-S is an ideal solution for contractors who want reliable system protection and convenient moisture monitoring in a single, easy-to-install component.







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