Packless Vibration Absorber - Brass Breadcrumb Home / Products / Parts / Valves and Valve Accessories / Packless Vibration Absorbers Loading... Mfg Part #: PAC-VAF-2 Brand: Packless Industries Burst Pressure (PSI): 3300 Inside Diameter (In.): 1/8 Outside Diameter (In.): 1/4 Working Pressure (PSI): 660