GZ-374 S – Hose coupling, equal – Ø20 – stee

GZ-251s – Hose coupling, reducing – ø16 / ø12 – steel

GZ-361 – Hose coupling, equal – Ø22 / Ø16 – Brass

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

GZ-230C – Straight coupling, equal – Ø10 / Ø10

GZ-2330 – Mixer connector M 10×1 / Ø12