G2 8111 Flushometer 1.28 GPF for Closet ELF-10 remove the existing crown by

remove the existing crown by loosening the hex nut on the underside of your Basys faucet

View the Sloan Optima Parts Breakdown to see where is goes

Extra Heavy Duty White with Self-Sustaining Chrome Plated Brass Hinges

in an effort not to touch the flush valve

*Note: This is a replacement for Sloan CR135A (0332024) Piston Assembly Closet - New Style Crown (1

G2 8111 Flushometer 1.28 GPF for Closet ELF-10 remove the existing crown byPart Number: #81038 Sloan Model Number: G2 8111 1. 28 Sloan Code Number: 3520289 Manufacturer: Sloan 1. 28 GPF, Polished Chrome Finish, Fixture Connection Top Spud, Single Flush, Battery, G2 Exposed Sensor Water Closet Flushometer. Specifications: Flush Volume: 1. 28 GPF Finish: Polished Chrome Power Type: Battery Battery Life: 6 years Valve: Diaphragm Valve Body Material: Semi red Brass Fixture Type: Water Closet Fixture Connection: Top Spud Rough In