Feature 1Excellent Sealing: This valve is well sealed with excellent craftsmanship, which aims to reduce leakage and make the process of exhausting more stable. 2High Flowing Rate: The valve body is designed with pneumatic direct flowing channel, with large inlet and export size and high flowing rate, so that you can have a great experience of using it. 3PP Material: Our valve is made of PP material, which is strong and durable, and can be applied for a long term under normal operation and use. 4Easy to Install: This valve is very easy to install, with G1 lower male thread and G1/2 upper female diameter, light weight and very friendly to novices. 5Applicable Scenarios: Our valve is suitable for use in residential, residential and office buildings as well as some industrial systems and is very versatile.Item Type: Automatic Air Vent ValveMaterial: PPSize: Approx. 20 x 8.5 x 8.5cm / 7.87 x 3.35 x 3.35in Weight: Approx. 313-327g/11-11.5ozBottom Port External Thread: G1Top Port Inner Diameter: G1/2Use: Inlet and exhaust valve .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 xAutomaticAirVentValve1 x Washer1 x White Inner Liner1 x Accessory