Hose Tail to Hozelock Male Connectors

Garden Hose Male Quick Release to 19mm Female Screw Tap Connector

Pole control Valve - Hozelock female to 1/2 tap connector

Shop - Magiccote UK

Hose coupling - Wikipedia

Metal Connectors & Fittings

Aluminium Hose Tail 12.5mm to Hozelock Male Connectors

Hozelock Double-End Male Hose Connector - Screwfix

Double Male Connector

G.F. Hozelock Male to Male Connector

Brass Hozelock Female to 1/2 Hose Connectors