AN-6287-1 Charging Valve  We will be shipping you a Brand new AN6287-1 Charging Valve Manufactured in the USA by AVALCO INC in Montrose CAFor operating pressures up to 3,000 P.S.I. This valve is rated to 3000 psi and comes with a Dill Brand core (Dill#302dn) and a Dill Brand Cap (Dill# 637) * Optional 4,000 P.S.I. core is available, contact us for more info.