A floor cleaner comprising: a vacuum source ; a suction inlet in fluid communication with the vacuum source ; and a recovery tank in fluid communication with the vacuum source and the suction inlet , the recovery tank configured to contain a fluid drawn by the vacuum source through the suction inlet from a surface to be cleaned , the recovery tank including, a tank body, a tank inlet , and a suction air outlet , a shutoff float including a float body and a closure , the shutoff float including a first interconnecting member , a float guide including a second interconnecting member configured to engage the first interconnecting member , the float guide configured to direct the shutoff float from a first position in which the first interconnecting member engages the second interconnecting member retaining the closure a predetermined distance from the suction air outlet inhibiting movement of the shutoff float toward the suction air outlet and enabling air flow through the outlet , toward a second position in which the closure is in communication with the outlet inhibiting air flow through the outlet , wherein the shutoff float is movable between the first position and the second position when the first interconnecting member disengages the second interconnecting member . a vacuum source ; a suction inlet in fluid communication with the vacuum source ; and a recovery tank in fluid communication with the vacuum source and the suction inlet , the recovery tank configured to contain a fluid drawn by the vacuum source through the suction inlet from a surface to be cleaned , the recovery tank including, a tank body, a tank inlet , and a suction air outlet , a shutoff float including a float body and a closure , the shutoff float including a first interconnecting member , a float guide including a second interconnecting member configured to engage the first interconnecting member , the float guide configured to direct the shutoff float from a first position in which the first interconnecting member engages the second interconnecting member retaining the closure a predetermined distance from the suction air outlet inhibiting movement of the shutoff float toward the suction air outlet and enabling air flow through the outlet , toward a second position in which the closure is in communication with the outlet inhibiting air flow through the outlet , wherein the shutoff float is movable between the first position and the second position when the first interconnecting member disengages the second interconnecting member . a tank body, a tank inlet , and a suction air outlet , a shutoff float including a float body and a closure , the shutoff float including a first interconnecting member , a float guide including a second interconnecting member configured to engage the first interconnecting member , the float guide configured to direct the shutoff float from a first position in which the first interconnecting member engages the second interconnecting member retaining the closure a predetermined distance from the suction air outlet inhibiting movement of the shutoff float toward the suction air outlet and enabling air flow through the outlet , toward a second position in which the closure is in communication with the outlet inhibiting air flow through the outlet , wherein the shutoff float is movable between the first position and the second position when the first interconnecting member disengages the second interconnecting member . <EOS>