ITEM NAME:8Pcs Plastic Scuba Diving Threaded Tank Valve Dust Plug Kit Diving Equipment Description: Scuba diving threaded dust plug protector cap for DIN valves work with either 200-bar or 300-bar DIN valve fittings With swivel attachment lanyard Lightweight, strong, portable and saltwater resistant The plug is vented so that the presence of high-pressure gas does not trap the plug and makes it difficult to remove Great replacement accessories for underwater scuba diving din first stage regulator Specification: Material: ABS Color: Black Height: Approx. 2.8 cm/1.1 inch Outer Diameter: Approx. 2.7 cm/1.06 inch Thread Inner Diameter: Approx. 2.18 cm/0.86 inch Size Chart: Height: Approx. 2.8 cm/1.1 inch Outer Diameter: Approx. 2.7 cm/1.06 inch Thread Inner Diameter: Approx. 2.18 cm/0.86 inch Package Includes: 8 Pieces DIN Tank Valve Dust Plug Note: Please allow slightly difference due to manual measurement. Color may be slightly different since different monitor. Thanks! DMO0001620219508339.Scuba diving threaded dust plug protector cap for DIN valves work with either 200-bar or 300-bar DIN valve fittings. 8 Pieces DIN Tank Valve Dust Plug. Material: ABS. Color: Black. Color may be slightly different since different monitor.