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Your cart is empty.standard 2" x 2" Ventalrm signal Alarm "whistles" while the tank is being filled, when the whistle stops, it indicates to stop the filling process so as not to overfill and cause a spill. Most oil delivery vendors require such an alarm before they will fill your tank.
Ted
Reviewed in the United States on March 17, 2025
Works just fine.
RAY WEEKS
Reviewed in the United States on November 27, 2023
great product but the price is KINDA HIGH
User
Reviewed in Canada on October 22, 2023
works a supposed to
SARGE
Reviewed in the United States on May 20, 2021
sizes of inlet & outlet are backwards !!! so it wont work !!!
Ryan Smogonovich
Reviewed in the United States on December 16, 2018
Screw it right in, its as simple as that
shopper_in_ny
Reviewed in the United States on May 15, 2016
Good quality. Instaled and works fine.
Placeholder
Reviewed in the United States on March 6, 2015
Excellent whistle works great after not having one for years oil delivery man can now fill tanks without worring about spillage as they do not have to deliver oil if whistle does not work
Michael H. Benton
Reviewed in the United States on November 6, 2015
When you need one, you need one!
JKP
Reviewed in the United States on November 16, 2014
Quick and easy to install. Replaced a faulty tank alarm and this is a much better design then my original. Works great and is required by oil companies in my area.
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