An extraction cleaner, comprising: a base including: a housing having a first side wall and a second side wall opposite from the first side wall; a supply tank seat adjacent to the first side wall; a recovery tank seat adjacent to the second side wall; and a handle extending from the first side wall and the second side wall and above the housing, wherein the handle includes a grip portion, a first leg portion extending from the first side wall to the grip portion, and a second leg portion extending from the second side wall to the grip portion, wherein at least one of the first leg portion is narrower than then first side wall and the second leg portion is narrower than the second side wall; a supply tank assembly configured to be received by the supply tank seat and having an inner wall of the supply tank assembly interfitting with the first side wall of the housing and with the first leg portion of the handle, the supply tank assembly extending along the first leg portion to the grip portion; and a recovery tank assembly configured to be received by the recovery tank seat and having an inner wall of the recovery tank assembly interfitting with the second side wall of the housing and with the second leg portion of the handle, the recovery tank assembly extending along the second leg portion to the grip portion, wherein at least one of the inner wall of the supply tank assembly defines a vertical channel to receive the first leg portion and the inner wall of the recovery tank assembly defines a vertical channel to receive the second leg portion. a base including: a housing having a first side wall and a second side wall opposite from the first side wall; a supply tank seat adjacent to the first side wall; a recovery tank seat adjacent to the second side wall; and a handle extending from the first side wall and the second side wall and above the housing, wherein the handle includes a grip portion, a first leg portion extending from the first side wall to the grip portion, and a second leg portion extending from the second side wall to the grip portion, wherein at least one of the first leg portion is narrower than then first side wall and the second leg portion is narrower than the second side wall; a housing having a first side wall and a second side wall opposite from the first side wall; a supply tank seat adjacent to the first side wall; a recovery tank seat adjacent to the second side wall; and a handle extending from the first side wall and the second side wall and above the housing, wherein the handle includes a grip portion, a first leg portion extending from the first side wall to the grip portion, and a second leg portion extending from the second side wall to the grip portion, wherein at least one of the first leg portion is narrower than then first side wall and the second leg portion is narrower than the second side wall; a supply tank assembly configured to be received by the supply tank seat and having an inner wall of the supply tank assembly interfitting with the first side wall of the housing and with the first leg portion of the handle, the supply tank assembly extending along the first leg portion to the grip portion; and a recovery tank assembly configured to be received by the recovery tank seat and having an inner wall of the recovery tank assembly interfitting with the second side wall of the housing and with the second leg portion of the handle, the recovery tank assembly extending along the second leg portion to the grip portion, wherein at least one of the inner wall of the supply tank assembly defines a vertical channel to receive the first leg portion and the inner wall of the recovery tank assembly defines a vertical channel to receive the second leg portion.