Fuel Grommet / Red Max T155185300.  This is the grommet in Husqvarna 579210305 fuel line kit.
Pack Size:1
Replaces:
Red Max T155185300

Fits/Specs:
Ethanol: Not compatible with greater than 10% ethanol fuel, Packaging Type: Branded bag, 2 Inlet, Grommet only

SR-5