Up until a couple of years ago, R-134a was cheap and plentiful. Today it’s a different storyrefrigerant is much more expensive and not always available. The Robinair 34988 recovers up to 20 percent more refrigerant, which means it will cost less to recharge the system. The best charge accuracy that could be claimed by older generation service machines is +/- 1 ounce, a 3 percent error on a two-pound system. That same charge accuracy on a 14-ounce system is over twice the error (7 percent).
Early R-134a systems could still provide some cabin cooling when they were 4-6 ounces (12- 18 percent) low on refrigerant. However, new designs are so efficient, they do not have reserve refrigerant, and charge accuracy will be critical. In the shop, the Robinair 34988 will recharge the vehicle to within 1/2 ounce of the charge capacity, and you will avoid the dreaded “call back”. As the shop owner, you will realize more profits per service by recovering more refrigerant and charging less. The savings will be obvious.