N f for 1-5/8″ foam
N f for 3/8″ air
N f for 1/2″ foam
N m for 1/2″ superflex
N f for 7/8″ foam
N f for RG 214
N f for RG 179-187
N f for RG 174-188-316
N f for RG 58-141-142-223-303
N f for RG 11-13-216
