Tank - Aquasource 98923 Version 2 Left handed Lid 84652 Can be purchased

Lid 84652 Can be purchased separately

Tank P/N: 4112

Manufacturer: Case Robinson

They differ is size based on their flush valve

Lid Size: 20" x 10

Tank - Aquasource 98923 Version 2 Left handed Lid 84652 Can be purchasedManufacturer: Aquasource Tank P N: 98923 Rough In: 12" This version is slightly larger than version 1. If your tank is version 1 and you replace it with this tank, your tank lid will likely not fit. Your tank without the tank lid should measure at its maximum left to right and front to back. If it is smaller, you need version 1. To determine if you have version 1 or 2, remove your tank lid and measure just the tank, at its maximum outside to outside,