GKDFA 30-0.5M/M20 GKDFA 30-0.5M/14.75/NPT GKDFA 30-0.5M/14.5/NPT GKDF 44-5M/14.75/NPT GKDF 44-5M/14.5/NPT GKDF 44-4M/14.5/NPT GKDF 44-3M/14.75/NPT GKDF 44-3M/14.5/NPT/S3063 GKDF 44-3M/14.5/NPT GKDF 44-2M/14.75/NPT