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

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

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

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

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

GZ-250s – Hose coupling, reducing – ø16 / ø10 / steel