1/2" NPT - 1/2" NPT Brass Nipple
1/4" NPT - 3/8" NPT Brass Nipple
1/8" NPT - 1/4" NPT Brass Nipple
1/4" NPT - 1/4" NPT Brass Nipple
3/8" NPT - 1/2" NPT Brass Nipple