It is available in 10mm and 12mm size and it is delay used for washing vehicles at service stations because it is only pipe which can fully withstand the unavailable oil. Grease contamination in garage.

SERP ref # Size in inch Size in mm Walk Thickness mm Max WP (BAR-PSI) Std Length mm
M-CWH-6 3/8″ 10.00 5.00 40-571 60/100
M-CWH-4 1/2″ 12.00 5.50 30-428 60/100