Our hose tail connectors can be used to connect gas, water, fuel, compressed air hoses and the like. Hole diameter: 8mm ; Nozzle: 5mm; Thread: 1/2; Fit 8mm(5/16") hose. Gas connector nozzle fitting for a copper to rubber hose connection, used in motorhomes and caravans. Material: Made of brass, strong and durable, good sealing. Package：2x connector nozzle. Material Brass Hole diameter 8mm Nozzle 5mm Thread 1/2 Compatibility Applicable to RV, caravan trachea connection Type Nozzle Connector Brand Unbranded/Generic MPN TJ4894927402803 EAN 4894927402803 .