Birchmeier 50117001V O-Ring, Viton
For Flox, Iris, Senior, BCS.
This is the o-ring that goes inside the Birchmeier adjustable nozzle (#28502598).
This item is Viton, which is heavier-duty and longer-lasting than the green rubber o-ring that comes with the new backpack.
The price is for 10 o-rings.
The o-ring is black in color and approximately 5/16" in diameter.
Keep extras on hand for emergencies.