Valve core 6000

6004: Brass; High/Low Temperature Resistant Core with Red Barrel Gasket;

6003: Brass; Standard Core with Black Barrel Gasket;

6001: Brass with Nickle Plated on surface; Standard Core with Black Barrel Gasket;
6002: Brass with Nickle Plated on surface; High/Low Temperature Resistant Core with Red Barrel Gasket;