PIYANYO Surfboard SUP Automatic Vent Plug Threaded One-Way Air Pressure Relief Valve 31x15x22 mm White Paddle Board Air Pressure Release 2PCS

["The standard M6 (31mm outer diameter) thread specification is perfectly compatible with the exhaust holes of the vast majority of inflatable surfboards, SUP paddleboards and kayaks on the market. The screw-in design makes installation and replacement very simple and quick, making it an ideal choice for replacing old or damaged exhaust plugs.","The advanced one-way exhaust technology of the SUP vent plug's one-way seal not only perfectly releases the internal excess air pressure but also firmly locks in the external environment. Its outstanding sealing performance ensures that no water droplets will seep into the board during any water sports, guaranteeing perfect buoyancy."]