Allegro ambient air pumps are rotary vane, oil-less compressors designed for transferring fresh air for applications like spray foaming, painting and finishing. They are provided with a firm metal base & housing with powder coating, offering scratch resistance. They have a quick-connect rectus air fitting to connect the hose to the outlet and a brass pressure relief valve for air delivery adjustment. These UL recognised pumps are capable of withstanding working pressure up to 15 psi and can easily work in a temperature range of 32 - 104 degrees F. Choose from a wide range of these air pumps, available in 8.25 and 23.5 inch lengths.