Description Plain lid with 2 inlets - Checkball included. see details for picture Fits Hamby Dairy Supply stainless steel and plastic buckets with short handle - see list below Has two inlets that fit 5/8 inch ID hose For NuPulse; 1 is for milk and 1 is for vacuum. For bucket milking with electric pulsators; 1 is for milk and 1 is for vacuum. the vacuum side will need to be reduced with a 5/8 x 1/2 inch hose adaptor (link below) and you will need a stallcock to put on the pvc vaccuum line For Fresh cow use; attach your milker hose to one side, then attach the other side to a vacuum source. Most dairy inspectors require the vacuum to come separate from your milk line. In that case, you will need a 5/8 x 1/2 inch hose adapter and you will need a stallcock to put on the pvc vaccuum line Checkball included. see detail image for picture 5/8 x 1/2 inch hose adapter available Also fits DeLaval, Coburn, Caprine Supply, Parts Department and other brands also available without check valve - Item number 34300 34310 3100079 34013 Related Items; 1053 Replacement gasket 10130 Check Ball Cage 10132 Ball for 34310 lid Fits Hamby SS Buckets; 30135 30155 30165 30175 30180 30190 Fits Hamby / Interpul