depends what you brew , fizzy yes , creamy low fizzy then 3/8 line . Maybe 6 ft if medium fizz less if lower . get inserts off ebay for 3/8 to 3/16 if needed to use 3/16 for fizzy and maybe 6ft ( mine 4ft at 20 psi serving for wheat of 3/16 , most other brews want 3/8 and serve much lower psi ) .