CL 40169A Vacuum Solenoid for Nilfisk-Clarke Scrubbers. This solenoid controls the vacuum system on the scrubber. Includes mounting plate. Fits Clarke Boost 28-32, Encore S17 / L17, Encore L20 / S20, Encore L26, Encore S2426, Encore L2426, Encore S30 / L30, Focus S17 / L17, Focus S20 / L20 models. Replaces Nilfisk Clarke 40169A. Our Part Number CL 40169A