Plug (4AN)

4AN male flare plugs are typically used to block flow from a tee fitting. -often for servicing a multistage system. Or, they're useful when setting one up for future expansion. Our 4AN Male to Female Branch Tee is a perfect example:

Our 4AN Male/Female Run Tee is yet another:

All three will be part of USRT's upcoming "PLUS2R" configuration for air cooling.

Anodized in black, these lightweight bits will resist heavy methanol concentrations without corroding. AN fittings are the choice of pro builders but are easy for casual builders to work with, too.