Widely used 4-inch party pump designed with a D-system beer tap, suitable for small beer kegs such as Molson and other compatible small beer kegs. Ideal for picnics, parties, weddings, and other events. Easy to install and operate; no power supply, gas bottle, or regulator required. Simply connect the beer pump to your keg's unlock handle to use. Excellent no-leakage design ensures stable pressure. The party pump uses a spring lock mechanism with durable O-rings at all connections to prevent leaks. Includes a special hose clamp at the hose connection to ensure a secure, leak-free fit. Constructed with high-quality materials. The pump is chrome-plated metal, 100% rust-free. The faucet is made of high-grade, environmentally friendly materials and is durable and resistant to breakage. Material: Metal Color: As shown Package Contents: 1 x Inflator Note: Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement error allowed is +/- 1-3 cm.