[MP81]

Wow, they really dropped in price!

I need to pick up a new one, just about time to change ours again (~5% left, so I will wait until that is 0)

 

[MP81]

I paid $26.59 shipped, on Rock Auto, for the AC Delco TP1015 filter, which is now shared between the 1st gen CTDs and '17+ HD Diesel GM trucks. It's the OEM-manufacturer (MANN) product...and now about $50 less than it used to be.