Model # VS-523 2" tank opening 2" vent pipe 21-3/4" GREATER THAN 2,000 gallons VENTALARM for cement vaulted tanks
-Ventalarm® Signals
 The First and the Finest
 • Since 1936! The original Ventalarm tank fill signal is built to last.
 • Used for above and below ground tanks.
 • Version for a 90° pipe elbow available.