The PAM Series is a push-to-connect fitting that is a compact size with a straight male hex configuration. In addition, the working pressure is 150 psi, and the temperature range is 32˚F to 140˚F. Nickel-plated Brass, the Buna-N O-ring, and the grip ring are Stainless Steel. Furthermore, this product is intended for use with compressed air and inert.