Sloan Royal 111 SFSM Flushometer 1.28 GPF for Closet master repair parts kit It's a 4-inch baseplate with

It's a 4-inch baseplate with gasket that is chrome plated brass

View Sloan 0318081 Spec Sheet

6 GPF regulator installed

Sloan Model Number: ROYAL 180-3

Sloan Royal 111 SFSM Flushometer 1.28 GPF for Closet master repair parts kit It's a 4-inch baseplate withPart Number: #85610 Sloan Model Number: ROYAL 111 SFSM 1. 28 Sloan Code Number: 3910276 Manufacturer: Sloan 1. 28 GPF, Polished Chrome Finish, Fixture Connection Top Spud, Single Flush, Battery, Royal Exposed Sensor Water Closet Flushometer. For 1 1 2" Top Spud Closets. Has non hold open user initiated True Mechanical Override (TMO) button. Specifications: Flush Volume: 1. 28 GPF Finish: Polished Chrome Power Type: Battery Battery Life: 3 years Valve: