This milking lid fits Coburn buckets as well as the most popular brands and is adaptable for use with Interpuls Pulsators. Fine polished stainless steel lid has two 9/16″ ID nipples. Inside dimension of rim is 7-7/8″ ID. Lid fits buckets which measure 4.7″ (120mm) between top of bucket and bottom of handle buckets with short locking handle. Gasket is included. Wt. 2 lbs.