The RYOBI 40-Volt Mower Side Discharge Accessory can be equipped easily in seconds. Transitioning between mulching, bagging and using the side discharge chute does not require any tools and the innovative design attaches using the bags connection points. The Side Discharge is compatible with RYOBI 20 in. 40-Volt Mowers (RY40LM30, RY401110 & RY401120).