4AN to 8AN ORB Filter fitting for Lightning 375, 4AN to 8AN ORB Filter fitting for Lightning 375., Nitrous Express 4AN to 8AN ORB Filte, Aluminum Fitting, an fitting, 8an, 4an, Filtered 8AN ORB to 4AN flare fitting for the inlet side of a Lightning 375 N2O solenoid., 4AN to 8AN ORB Filte, Pipe Fitting