CRL Yellow Dual Vacuum Retrofit Kit for AUP11104DC Lifting Frames AG Series Plated Diamond Drill Bits and 1/4" (1

and 1/4" (1

7 mm gas thread

4" x 118" (102 mm x 3

lock-on switch

CRL Yellow Dual Vacuum Retrofit Kit for AUP11104DC Lifting Frames AG Series Plated Diamond Drill Bits and 1/4" (1Converts Single Vacuum Frame to Dual Vacuum Vacuum Circuits Separated by Check Valves Professional Installation Only The CRL Wood's Dual Vacuum Retrofit Kits provide the ultimate in safe handling safeguards to the two most popular Wood's below the Hook DC Vacuum Lifting Frames (P11104DC and MRT411LDC). Dual vacuum systems divide the frames vacuum pads into two separate vacuum circuits separated by check valves. If one circuit loses vacuum, the second