Kit include a Vacuum Control Regulator, a Deep Vacuum Gauge with a cross adapter to 1/4 " female NPT Pump Port and (2 X) 1/4 X 1/2 Barb for milker hose connection. This kit is designed for oilless oil-free vacuum pumps intake port. Hardware kit:Vacuum Gauge Regulator Controller:for Cow Goat Milker Pulsator Pressure Regulation Automation Compatible with Surge Delaval VIOT milkersupply.com Track Page Views WithAuctiva's FREE Counter