Mercury Float Switch for Mastermatic and Omega series (yellow) - 421C11 \
This switch works for almost all Mastermatic and Omega series machines like the 4000, 4100, 4100LX, 4200 and 7200. If your mercury float switch kills the Kohler engine when your waste tank is full, this is the correct part.
If your mercury float switch turns off the Cat Pump clutch when your waste tank is full,
please order Steam Way Part # 421C13. Call 800-447-8326 with any questions.