Carrier TT2-001 Total Test Replacement Blue Tubes

The Carrier TT2-001 contains six canisters, each with five blue Totaltest Replacement Tubes, 30 total. The tubes are roughly 2.8" long and come in a canister that’s 6.6" wide and 3.6" tall. The tubes are used to test for acid or moisture contamination in your refrigerant lines when connected to the Totaltest instrument sold separately. These contaminants cause the chemical crystals inside the tubes to change color, making them easy to see. The Carrier Totaltest Replacement Tubes Blue helps identify potential problems early on to help prevent system damage and expensive repairs and to ensure proper operation of your Carrier air conditioner or heat pump using specific CFC or HCFC refrigerants R-11, R-12, R-500, R-502, R-22.