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

GZ-360s – Hose coupling, reducing – ø12 / ø10 – steel

GZ-253A – Hose coupling, equal – Ø19 – Brass

GZ-252s – Hose coupling, equal – ø16 – steel

GZ-363 – Hose coupling, equal – Ø19 / Ø11 – Brass

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