**PLEASE CALL US IF NOT SURE WHEN ORDERING A REPLACEMENT PRESSURE TANK, WE ARE NOT RESPONSIBLE FOR INCORRECT ORDERS, WE WILL NOT REFUND ANY SHIPPING COST AT ALL.**

To Order: Call 1-800-228-4718. Please have the Make, Model and Serial Number of your current pressure tank available. This will help assist our customer service representative match the correct replacement tank.

SERIES 503 SPEC SHEET DATA PDF 

INSTALLATION GUIDE & HOW TO PDF

SERIAL NUMBER CROSS REFERENCE PDF

M-102540-F3 503 Series Flushmate Complete Replacement System  M-102540-F3

M-102540-F3 is the Replacement for 503 series tanks.

Flushmate Genuine Replacement Parts.

Fits Gerber 21-012 tanks ONLY.

Flushmate Pressure Tanks cannot fit into Gravity Style Tanks.
They will only fit in tanks that already had a Pressure Tank in them before.