Double nipple with hexagon ⅜" x 19 mm

Double nipple with hexagon ½" x 22 mm

Double nipple with hexagon Special length ½" x 36 mm

Double nipple with hexagon Special length ½" x 50 mm

Double nipple with hexagon ¾" x 25 mm

Double nipple with hexagon 1" x 30 mm

Double nipple with hexagon 1¼" x 41 mm

Double nipple with hexagon 1½" 40 mm