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

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

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

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

GZ-356 – Hose coupling, equal – Ø21 / Ø19 – Brass

GZ-372 S – Water coupling Ø19 x Ø10 – steel