Tank - Aquasource 98923 Version 1 Color:White If your tank is larger

If your tank is larger

May be stamped "American Chinaware"

Lid P/N: 6325

Lid Part Number:   RP75954

Toilet Model: Serif

Tank - Aquasource 98923 Version 1 Color:White If your tank is largerManufacturer: Aquasource Tank P N: 98923 Rough In: 12" Flush Valve: 3" Bolt Spread Center to Center: 6" This is the smaller of the 2 versions of this tank. Your tank should measure left to right and front to back at its maximum without the tank lid. If your tank is larger, you need version 2. To determine if you have version 1 or 2, remove your tank lid and measure just the tank, at its maximum outside to outside, left to right and front to back.