CRL Dual Vacuum Retrofit Kit for AUMRT411LDC Lifting Frames Portable Sanders Polishers & Accessories OSI®: Polyseamseal Acrylic Caulk with

OSI®: Polyseamseal Acrylic Caulk with Silicone

Limitations It is not recommended for concrete and stone expansion joints

Sands Cleanly with Dust Collector

This sander/polisher comes with a 7" (178 mm) hook and loop polishing pad

For Use with Mist Coolant Unit

CRL Dual Vacuum Retrofit Kit for AUMRT411LDC Lifting Frames Portable Sanders Polishers & Accessories OSI®: Polyseamseal Acrylic Caulk withConverts 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