https://www.kaercher.com/int/accessory/geka-connector-with-hose-barb-r-1-2-63884610.html
High-pressure hose 2 x EASY!Lock DN 8, 315 bar, 20 m, ANTI!Twist
Longlife 400 high-pressure hose, 1 x EASY!Lock, 1 x M22 x 1.5, DN 8, 400 bar, 1.5 m
Geka connector with hose barb, R 1/2"
Geka connector with hose barb, R 3/4"
Water supply hose
NW 13 R1" / R 3/4", up to 30 °C
Screwfix
BRASS HOSE FITTING SET 4 PIECES 4 PCS (13866)
WERNER FIBREGLASS & ALUMINIUM 8 TREADS FIBREGLASS SWINGBACK 2.2M (9288X)
This one is 2 more steps higher than the one we are presently having