What’s the oldest “in use” piece of equipment you have running on your system right now?

[ta88brian]

My Aquacontroller II.
Bought from Kurt @ a show in 2001

 

[ta88brian]

Edit
[/Qmy etss 800 protein skimmer

 

[Dburr1014]

I forgot my oldest is my QT.

 

[FDchase]

Not sure what’s older the tank or the skimmer. My uncle got it when I was in early high school or maybe even middle school. He got it used from a lady. I graduated 2010 so they are probably at least 18 years old each. Although the tank I redid the inner seals.

 

[vlangel]

Like @Paul B, I have my original swing arm hydrometer (25 years old) and then next is probably my eshopps HOB overflow box from around 2009. Old is not necessarily antiquated (I say as I will be collecting Medicare in a few months!) LOL