Phase Change Cooling Insert Style Cooling Inserts For Use With Vests Compatible with Grainger Part Number 45A289 45A290 45A291 8MTL0 8RFR4 9NP96 9V130 Compatible with Series 6626 6627 Compatible with Brand TECHNICHE Compatible with Manufacturer Model Number 6626 6626HV 6626I 6626N 6627 Cooling Method Cold Pack Inserts