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

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

GZ-351 s – Hose coupling, equal ø12 – steel

GZ- 386 – Hose coupling – ø19/ ø 19 – Brass

GZ-357 – Hose coupling, equal – ø14 – Brass

GZ-230 A – Straight coupling, equal – Ø8 / Ø8