Product details:

Eldon James 3/8-18 NPT to 3/8 Barbed Adapter, White Nylon Features: Same chemical and physical properties as Natural Nylon. Contains recycled runner material produced during virgin material, Natural Nylon production runs. Manufactured to the same tolerances and quality standards as our Natural Nylon fittings. Lot traceability certificates are not available for White Nylon. Temperature Range -50 F to 275 F (135 C). Pressure 125 psi at 70 F.