Smart Spice line connectors install and repair without brazing or flaring. Simplifies connections to VRF, Mini-Splits and Unitized systems. Works with copper, aluminum, and steel lines. No expensive tools required. Time tested endurance, Burst tested to 2,600 psi, Vacuum tested to 340 Microns. • Continuous Operating Temperature – 40ºF to 300ºF / – 40º to 150ºC • Seal Sleeve Temperature Range – 40ºF to 300ºF / – 40º to 150ºC •