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

GZ-230 D – Straight coupling, equal – Ø8 / Ø10

GZ-356 – Hose coupling, equal – Ø21 / Ø19 – Brass

GZ-251 – Hose coupling, reducing – ø16 / ø 12 – Brass

GZ-352 – Hose coupling, equal – Ø15 / Ø10 – Brass

GZ-385- Hose coupling – Ø19 / Ø16 – Brass