Connection Learn more about our ranges of standard or safety quick fittings for compressed air and other fluids: breathing air, cooling circuits, water, hydraulics, welding, quick-release fitting Refine search Sort results by fluid COMPRESSED AIR BREATHABLE AIR WATER INERT GASES AND FLUIDS OIL Colour identification collar Ø 8 mm Socket 135° tapered male thread Socket 90° tapered male thread Straight socket parallel female thread Straight socket tapered male thread Straight socket tapered male thread Socket extender parallel male thread G 1/4 Socket extender parallel male thread G 1/8 Socket extender - Smooth version - Threading to be cut: R 1/4 or NPT 1/4 Plug 135° parallel female thread Plug 135° for hose Plug 135° for self-locking hose Plug 90° parallel female thread Plug 90° for hose Plug 90° for self-locking hose Plug 135° for self-locking hose