The rubber seal is to fat and causes problems locking in, find a thinner seal.
Bottom Line No, I would not recommend this to a friend
Merchant response: Thank you for writing to us. We are sorry that you are not satisfied with your West Marine manometer. We We'd like to offer you a substitute inflation check gauge. Please consider contacting our Customer Care Department at 1-800-262-8464. (International customers please email email@example.com or call 1-831-761-4800).