BOSCH GEX 150 AC, GEX 150 TURBO, GEX 125-150 SANDER REPLACEMENT 150mm BASE / PAD 3165140219464 | eBay
Bosch Professional 1x Expert Multihole Backing Pad (for Bosch, Medium Version, Diameter 150 mm, Random Orbital Sander Accessories) Compatible with GEX 125-150 AVE, GEX 150 AC and GEX 150 Turbo. - Amazon.com