Tank - Eljer 5540 Standard Flush Valve Version Color:Yellow Tank P/N: K4504

Tank P/N: K4504

Tank P/N: 2403

Note that a small percentage of Niagara 2225 / Glacier Bay 779-923 tanks were incorrectly stamped as 331-725

Toilet Model: Brentwood

6" Bolt Spread center to center

Tank - Eljer 5540 Standard Flush Valve Version Color:Yellow Tank P/N: K4504Manufacturer: Eljer Tank Part Number: 5540 Toilet Model: Rough In: 12" Flush Valve Diamter 2. 5" Bolt Spread Center to Center 5. 625" Tank Only, does not include lid or internal parts. Lid 5540 Can be purchased separately Eljer made 3 versions of the 5540 tank. This is the version with a standard flush valve hole in the bottom. If this is not the version you need, search our site for Tank Eljer 5540 to see other options.