Other Flexmaster

Buna-N is the material here, which gives you solid sealing performance across a decent temperature range. The rated minimum working temperature comes in at -25°F, so it holds up fine in cold environments without the seal breaking down on you.

It matches 2 inch end size on both ports, and the second connection is listed as a Line/Hose/Tube end type.

Buna-N rubber is generally resistant to petroleum-based fluids, but it's always best to check the fluid compatibility document to be absolutely certain it's suitable for your specific application.