The 344 series has many options to provide ideal performance. These options include the choice of either a polypropylene or stainless steel ball to complete the stainless steel stem, the option for either an E or EC series motor, as well as cable or DIN electrical connections. The 344 valve series also is available in either 2-way or 3-way variations. The 3-way version redirects the flow to a bypass line when the booms are not active, while the 2-way maintains a complete shut off.