Carrier SA-17S Moisture and Liquid Indicator Sight Glass 7/8" ODF Solder

The Carrier SA-17S is a dual-function moisture and liquid indicator sight glass designed for use in refrigeration, air conditioning, and HVACR systems. Known as the Sporlan Type See-All, it combines moisture indication and liquid line sight glass functionality into a single, economical inline unit.

The moisture-sensing element is a porous filter paper that reacts to the presence of moisture in the refrigerant system. A green or dark color indicates the refrigerant is dry, while a yellow color indicates the refrigerant is wet — signaling that service attention may be required. The color change is calibrated to trigger at moisture levels generally accepted as the safe operating range, and the change is reversible. The large, clear sight glass also allows technicians to visually confirm that the liquid line is carrying a full flow of refrigerant to the expansion device, eliminating flash gas concerns.

Key Features:

• Dual-function design: combines moisture indication and liquid line sight glass in one unit
• Color-changing indicator element — green (dry) to yellow (wet) for quick visual diagnosis
• Compatible with most common refrigerants
• Replaceable moisture indicator element
• Large full-view sight glass for easy monitoring
• Indicator element protected from discoloration and dirt
• Factory tested for leak-free performance
• Rated to 650 PSI maximum working pressure
• Connection: 7/8" ODF Solder x 7/8" ODF Solder
• Overall length: 6.31 inches (6-3/8")
• Suitable for residential, industrial, food service, and transportation applications

Cross-reference part numbers: 700507, SA17S, 687472181033. The SA-17S is manufactured in the USA and is an ideal diagnostic tool for any HVACR technician working on refrigerant liquid lines.