Why do bottle nut's ?

[Loudpedal]

Have different size orffices? Have 4 bottle nuts and they are all different? These are all -4an line size. Will this make a difference in NOS delivery? Thanks Loud

[Monty Mikho]

Some classes like NPS have line size limitations. I believe they lifted that rule this year. Use the -6 cap with the shortest hose possible. Detroit Flexible Metal can make you a custom size one if you need. Or you can buy some reuseable fittings from Jegs (must be steel and not the aluminum ones) to get the hose the size you need.