Midland - 29PO2-812 - 1/2 X 3/4 POHB X FIP Adapter

1/2 X 3/4 POHB X FIP Adapter
$22.70

Midland - 29PO10-45 - 1/4 X 5/16 POHB X OD TUBE Adapter

1/4 X 5/16 POHB X OD TUBE Adapter
$9.81