The 31407 Quick-Fix Kit features one 3/8″ (9.5mm) NPTF  fitting with a 1/4″ (6.4mm) NPTF Adapter.

– Tramec Sloan’s Hose End Repair Kits are the First & Best of Their Kind
– The 31407 Repairs One Damaged 3/8″ (9.5mm) Rubber Air Brake Line
– Quick-Fix Makes Field Repairs Easy, Reducing Downtime
– Meets DOT 106 & SAE J1402 Requirements
– Available with 3/8″ (9.5mm) or 1/2″ (12.7mm) Live Swivel Fittings
– Designed & Made in the USA!