Realistically they're made of cheap metal and pit within a couple of years... but sadly they all are... Check out the chrome shops return policy just in case a bell drops off as you drive down the road (the reason I have two bells from another set) TA will not let you return them or replace them... Truly I'm not that impressed with the quality for the price...
My current air horns have quarter sized holes rusted in them. If I cover the hole with my hand they work fine. I may try to JB weld them up in the meantime and look for something else to replace with. These train horns if you buy one set of three are not any more money than two of the OEM style is why I am considering that route.
I understand your thoughts... Just gave you my critique on the product... I believe the Union Pacific brand is higher quality than the Grand whatever product... But if you can afford the real deal set off a diesel loco you'd be much, much happier... and there's guy that sell them... check on line...
Here are some United Pacific for $155. http://www.airhornsoftexas.com/collections/train-air-horns/products/46129-train-horn I just put the JB weld over my holes and will let is sit overnight and see how it does. If not looks like I might be ordering these united ones.
