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

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

GZ-253s – Hose coupling, reducing – ø19 / ø16 / steel

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

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

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