GZ-330 – Straight coupling, equal for CNG Ø 6 / Ø 6

GZ-250s – Hose coupling, reducing – ø16 / ø10 / steel

GZ-359 s – Hose coupling, reducing – ø14 / ø 12 – steel

GZ-364 – Hose coupling, reducing – Ø21 / Ø21 – Brass

GZ-253As – Hose coupling, equal – ø19 – steel

GZ-230B – Straight coupling, reducing – Ø6 / Ø8