Detailed Product Description paddle flow switch(liquid flow switches,flow switch)paddle flow switch(liquid flow switches,flow switch)ZZS FLOW SWITCHSpecifications:ZZS Liquid Switches are Single-Pole-Double-Throw(SPDT) flow switches that are used in liquid lines carrying water, ethylene glycol, or other liquid not classified as hazardous. They can be wired to energize one device or powered from ...