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

GZ-355 – Hose coupling, reducing – Ø19 / Ø12 – Brass

GZ-249s – Hose coupling, reducing – ø16 / ø8 – steel

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

GZ-250 – Hose coupling, reducing – ø16 / ø10 – Brass

GZ-230 – Straight coupling, equal – Ø6 / Ø6