A2L Superheat & Subcooling Calculator

This tool is used for charging A2L Refrigerant Systems. One side of this tool is a slide chart used for calculating subcooling for a R-32 TXV system and the other side is a slide chart used to calculate subcooling on a R-454B TXV system. The photo shows both sides of the tool. This tool is made of thick durable water resistant paper stock with corner rivets. It fits easily in your shirt pocket at approximately 6.25 inches high by 3.25 inches wide.