ES D-Plug 31.5mm G1/4 AG to G1/4 AG - Deep Black 17581 Features: What's new? In comparison to double nipples or comparable adapters, the ES D-Plug is plugged in and not screwed. The necessary stability is ensured by two closely spaced O-rings on the male component of the connection. Of course, the connection was extensively tested in the Alphacool laboratory with the result that the D-Plug is absolutely tight up to a maximum pressure of 1.5 bar and does not come loose. Possible uses Alphacool's ES D-Plug enables the easy connection of water cooling components such as graphics card and CPU coolers or radiators to each other. Since the connection is only plugged in and not screwed, it is easy to install or quickly replace. The ES D-Plug has a variable length. By pulling the connection apart, you can extend it by up to 15 mm. This flexibility allows you to compensate for inaccuracies in the system structure and prevents hoses from twisting during assembly. Using the D-Plug, you can connect water cooling elements even in the tightest of spaces. The right size for every application The ES D-Plug is available in lengths of 20 mm, 25.5 mm and 31.5 mm, in either brilliant chrome or matt black. Replacement O-rings in three different colors are included in delivery. Specifications: material Brass Color Black length 31.5mm diameter 20mm thread G1/4“ AG Thread length (incl. O-ring) 5mm Weight 54g Pressure tested 1.5 bars