UP-4 Door Valve, by Ultra Precision

For use with the Ultra Precision UP2 valve to provide control of secondary doors which need to stay open when gear are down even though the main doors are shut, such as the F-15, P-51 Mustang ect...

• Requires no mechanical link, air line controlled via the UP2
• Size 1.94 x .8 x .62"
• Weight 1.52 oz