N f for UT.085
N f for 7/8″ air
N f for UT.141
N f for 7/8″ foam
N f for UT.250
N m for 7/8″ air
N m for 7/8″ foam
N m for 1/2″ foam
N m for 1/4″ foam
N m for 1/2” superflex
