GZ-364 – Hose coupling, reducing – Ø21 / Ø21 – Brass

GZ-252 – Hose coupling, equal – Ø16 – Brass

GZ-253As – Hose coupling, equal – ø19 – steel

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

GZ-350s – Hose coupling, equal – ø10 – steel

GZ-358 – Hose coupling, reducing – ø16 / ø14 – Brass