Fire Hose Couplings: - Nominal diameter: 50mm, 65mm, 80mm, 100mm - Working pressure: 1.6MPa - Manufacturer Fire Hose Couplings , Couplings , quick couplings Features:1) Nominal diameter: 50mm, 65mm, 80mm, 100mm2) Working pressure: 1.6MPa3) Strength test pressure: 2.4MPa4) Applicable mediums: water, foam .Packing:cartonPVC / RUBBER / TPU lining Fire Hose ; Double Jacket / Layflat / Color Fire Hose ...