Carrier TT2-002 Yellow Moisture Test Kit Replacement Tubes

The Carrier TT2-002 contains a pack of six replacement tubes total of 6 filled with yellow chemical crystals for your Totaltest instrument sold separately. Special chemicals in a tiny capsule that act as detectives inside your Carrier HVAC system. Each of those yellow tubes is just 0.7" long and 0.6" wide, but they are crucial to preventative maintenance. The tubes are roughly 5.6" tall, and are housed in a canister surrounding them. These tubes are specifically designed to detect moisture contamination in refrigerant lines of Carrier air conditioners or refrigeration systems using HFC refrigerants such as R410A when used with the Total test instrument. In the system, the tubes are exposed as the refrigerant circulates.