These fittings have a 4.1mm inner diameter, to allow the tube to pass all the way through
0.9mm pitch / For 1.75mm filaments
Capricorn / Capricorn / Capricorn / Capricorn / Capricorn / Capricorn / Capricorn / Capricorn / Capricorn / Capricorn / Capricorn / Capricorn /
Capricorn / Capricorn / Capricorn / Capricorn / Capricorn / Capricorn / Capricorn / Capricorn / Capricorn / Capricorn / Capricorn / Capricorn /