Raw brass
Reduced double nipple, with hexagon ⅜" x ¼"
Reduced double nipple, with hexagon ½" x ¼"
STEDO reducing nipples, male thread ¾" x ⅜"
Reduced double nipple, with hexagon ¾" x ½"
STEDO reducing nipples, male thread 1” x ½"
Reduced double nipple, with hexagon 1” x ¾"
Reduced double nipple, with hexagon 1¼" x 1”
Reduced double nipple, with hexagon 1½" x 1¼"
Reduced double nipple, with hexagon 2” x 1½"