Tank - American Standard 4000101 Left handed but we have found that

but we have found that they come in 2 sizes

Maybe be stamped P400 which is used for several different Mansfield models with different lids

is the same shape and size

Tank P/N: 270906

Manufacturer: NORRIS

Tank - American Standard 4000101 Left handed but we have found thatManufacturer: American Standard Tank P N: 4000 Rough In: 12" Bolt Spacing: 6. 25" center to center Cadet 3 Flowise Tank Only, does not include internal parts or lid Parts and Lid Can be purchased separately This is the standard trip lever version of the 4000 tank. American Standard made several tanks with the number 4000. The lid that matches with this tank is 735158.