1、Size: Inner diameter of the fuel vent is 1.2cm and the outer diameter is 1.6cm, which is suitable for 5/8 inch inner diameter hose, applicable for yachts. 2、Straight：Fuel vent with straight through design ensures good ventilation and reduces pressure inside the fuel tank, ensuring normal fuel supply and use. 3、Stainless Steel: Marine fuel vent is made of stainless steel, which is corrosion resistant and can resist the corrosion caused by seawater and other harsh environments. 4、Shock Resistant: Vents are carefully designed and manufactured to withstand pressure and vibration during ship operations and maintain a stable connection. 5、Easy Installation: Boat fuel gas tank vent is compact, with convenient installation design, effortless installation, professional skils are not required. Item Type: Marine Fuel Gas Tank Vent Material: Stainless steel 316 Diameter Size: Approx. 1.2 x 1.6cm / 0.5 x 0.6in  (inner diameter x outer diameter) Fitment: Fit for 5/8 inch bore hose 4 x Marine Fuel Gas Tank Vent