3/4" Hose Barb Oil Drain Adaptor to suit Holset T3Our oil drain adaptor is specifically designed for the Holset T3 frame to work around the compressor housing allowing a 3/4" drain hose to be used. Bolt hole spacing - 50.8mmSupplied with viton o-ring and fasteners.Fits the HX30 turbo. CNC machined from billet 6061-T6 aluminium at our factory in Napier, New Zealand, and anodised black for great looks and corrosion resistance.