Please contact us for the latest version.sales@ocaire.com, CONTROLLER, DUAL SPEED, AIRLINE EQUIPMENT, ASD DUAL SPEED CONTROLLER, DB, ASD 1/4INCH STANDARD (PT), .11243 lb, ModelApplicable tubing Metric sizeInch size 468101/8andquot;5/32andquot;3/16andquot;1/4andquot;5/16andquot;3/8andquot;ASD430FM-02--------------------