NPT Female x O-Ring Code 61

1/2" NPT Female x #8 O-Ring Code 61, 3/4" NPT Female x #12 O-Ring Code 61, 1" NPT Female x #16 O-Ring Code 61, 1-1/4" NPT Female x #20 O-Ring Code 61, 1-1/2" NPT Female x #24 O-Ring Code 61