NW16 Automotive Coolant Hose Quick‑Connect Fitting✅ NW16 standard size✅ PA66‑GF30 reinforced nylon material✅ Stainless steel retaining clip, convenient for assembly and disassembly✅ Direct from factory, in‑stock supply✅ Support mold development for bulk ordersPerfect connector for german automotive coolant hoses, stable connection, good temperature‑resistance performance.