Packless Vibration Absorber - Brass Breadcrumb Home / Products / Parts / Valves and Valve Accessories / Packless Vibration Absorbers Loading... Customer Part Number: PAC-VAF-9 Brand: Packless Industries Burst Pressure (PSI): 2700 Inside Diameter (In.): 1 Outside Diameter (In.): 1-1/8 Working Pressure (PSI): 540