GZ-K110 – Nipple, reducing – M10x1 / M12x1 – Ø6 / Ø8 – lenght 30 mm – hex 14

GZ-17-41 – Reducing nipple – 5/8-18 UNF / M 12×1 – L=47

GZ- 17-55 – Nipple – external G 3/8″ Left / external G 3/8″ Left – L=26

GZC-723 – Nipple, equal – M12x1 / M12x1

GZC-715 – Nipple M10x1 / M10x1 – length 44 mm hex 14

GZC-712 – Nipple R1/4 x 1/18 / R1/4″ x 1/18 – length 35 mm – hex 14