This onboard air compressor kit includes a 0.8-gallon air tank, a compressor, and pipes. The compressor is designed for automatic operation, maintaining optimal tank pressure within its working range. Constructed with rust-proof materials and featuring an upgraded anti-leakage and shock-absorption structure, It's perfect for a variety of applications including air horns, tire inflation, and inflating air mattresses. | Vevor | | 12V Air Compressor with Tank 0.8 Gallon/3 L, Train Horn Air Compressor, 120 psi Working Pressure Onboard Air Compressor | Black | Best Buy