NUKE Fuel Catch tank 3.0L - Walbro GST 450 / 520 A Catch Tank, specially developed for use with Walbro GST 450 / 520 fuel pumps. Safe for different types of fuel such as Petrol, Methanol, Ethanol and E85. Fits:  1-2 Walbro GST400, GST450, GST520 and also other 39mm fuel pumps. Outlet: AN10 Inlet: AN8 Return: AN8 Return to tank: AN8 Included: 1x 3 .0 liter catch tank 1x aluminum mounting bracket (6 bolt) 1x Dual mounting bracket for DW400 fuel pumps 2x 39mm fuel pump insert for smaller diameter fuel pumps 2x 1 /4 BSPP to 8mm fitting for fuel hose 1x 1/4 BSPP Plug (for use with a fuel pump)