Mansfield 3.25-in Plastic Flush Valve Assembly for Use In 3.5 Gpf Alto-pro-fit Tanks in the Residential Toilet Flush Valves & Repair Parts department at Lowes.com
The 5 Different Toilet Flush Valve Types
Fluidmaster 3-in Black Plastic Flush Valve in the Residential Toilet Flush Valves & Repair Parts department at Lowes.com
Fluidmaster Universal 3 in. Complete Toilet Flush Valve Repair Kit 540AKRP5 - The Home Depot