XSPC G1/4" to 3/8" ID, 1/2" OD Compression Fitting V2 for Soft Tubing, Matte Black, 6-pack Go to amazon.com Related posts Thing need consider when find watercooling pc fittings? FeatureCompression FittingG1/4" ThreadFor 3/8" ID, 1/2" OD Tubing (10mm ID, 13mm OD)Matte Black Finish DescriptionXSPC compression fitting for water cooling systems with easy tool-free installation. Model: TR-5060175588814-6P.