GKDF 42-3M/14.75/NPT GKDF 42-3M/14.5/NPT GKDF 42-3.1M/14.5/NPT GKDF 42-2M/14.75/NPT GKDF 42-2M/14.5/NPT GKDF 42-1M/14.75/NPT GKDF 42-1M/14.5/NPT GKDF 42-1.5M/14.75/NPT GKDF 42-0.5M/14.75/NPT GKDF 42-0.5M/14.5/NPT