Before change After change Series KQ2C Notes when Ordering Color Caps Applicable Sizes and Models How to Identify Release Buttons Before and After Change No protruding mark Release button Protruding mark Release button In order to improve the operability, the outside diameter of the release button has been enlarged for the New KQ2 series. Along with this change, the usable color caps differ before and after the change. Please contact SMC if anything is unclear. The release button for both the fitting/KQ2 and color cap/KQ2C after the change can be identified by the protruding mark on the left side of the logo, and the release button before the change has no protruding mark. The same identification method is used for metric size and inch size. * Along with the change of the release button, the model of the color cap/KQ2C is changed from KQ2C-�ｮA to KQ2C-�ｮB. * There is no change of the model for the fitting/KQ2. �ｮ: B (Black), R (Red), YR (Orange), BR (Brown), Y (Yellow), G (Green), CB (Sky blue), GR (Gray), W (White), BU (Blue) Applicable tubing O.D. mm Model oD1 oD2 L Weight g o2 KQ2C-02�ｮA 6.1 3.2 2.6 0.1 o3.2 KQ2C-23�ｮA 7.3 4.3 2.6 0.1 o4 KQ2C-04�ｮA 8.3 5.2 2.6 0.1 o6 KQ2C-06�ｮA 10.3 7.2 2.6 0.1 o8 KQ2C-08�ｮA 12.8 9.2 2.6 0.1 o10 KQ2C-10�ｮA 15.2 11.2 2.7 0.1 o12 KQ2C-12�ｮA 17.6 13.2 2.7 0.1 o16 KQ2C-16�ｮA 22.4 17.2 3.2 0.2 Metric Size Applicable tubing O.D. Model Metric size o8, o10, o12, o16 All models* Inch size o1/4”, o3/8”, o1/2” * Excluding models without release buttons �ｮ: B (Black), R (Red), YR (Orange), BR (Brown), Y (Yellow), G (Green), CB (Sky blue), GR (Gray), W (White), BU (Blue) Applicable tubing O.D. mm Model oD1 oD2 L Weight g o2 KQ2C-02�ｮA 6.1 3.2 2.6 0.1 o3.2 KQ2C-23�ｮA 7.3 4.3 2.6 0.1 o4 KQ2C-04�ｮA 8.3 5.2 2.6 0.1 o6 KQ2C-06�ｮA 10.3 7.2 2.6 0.1 o8 KQ2C-08�ｮB 13.6 9.2 2.6 0.1 o10 KQ2C-10�ｮB 16.2 11.2 2.7 0.1 o12 KQ2C-12�ｮB 18.8 13.2 2.7 0.2 o16 KQ2C-16�ｮB 24.2 17.2 3.2 0.3 Metric Size �ｮ: B (Black), R (Red), YR (Orange), BR (Brown), Y (Yellow), G (Green), CB (Sky blue), GR (Gray), W (White), BU (Blue) Applicable tubing O.D. inch Model oD1 oD2 L Weight g o1/8 KQ2C-01�ｮA 7.3 4.3 2.6 0.1 o3/16 KQ2C-05�ｮA 9 5.9 2.6 0.1 o1/4 KQ2C-07�ｮB 11.5 7.5 2.6 0.1 o3/8 KQ2C-11�ｮB 15.7 10.7 2.7 0.1 o1/2 KQ2C-13�ｮB 19.6 13.9 2.7 0.2 Inch Size �ｮ: B (Black), R (Red), YR (Orange), BR (Brown), Y (Yellow), G (Green), CB (Sky blue), GR (Gray), W (White), BU (Blue) Applicable tubing O.D. inch Model oD1 oD2 L Weight g o1/8 KQ2C-01�ｮA 7.3 4.3 2.6 0.1 o3/16 KQ2C-05�ｮA 9 5.9 2.6 0.1 o1/4 KQ2C-07�ｮA 10.7 7.5 2.6 0.1 o3/8 KQ2C-11�ｮA 14.8 10.7 2.7 0.1 o1/2 KQ2C-13�ｮA 18.5 13.9 2.7 0.1 Inch Size Applicable color cap Applicable color cap A 120-1