CODE	Colour	H (mm)	L (mm)	Connection
ESK	Orange	O	300	1/4
ESB	Orange	O	400	3/8
ESK G	Orange	V	300	1/4
ESB G	Orange	V	400	3/8
ESB 1/2	Orange	O	400	1/2
ESB 1/2 G	Orange	V	400	1/2