Details: GAS CAP , 201211, 3 1/2" DIAMETER, C.A.R.B. APPROVED FILL CAP, NON VENTED FOR FUEL INJECTION. INCLUDES LANYARDS, THESE TANKS WILL USE AUTOMETER, VDO STANDARD AND VDO TUBE TYPE FUEL LEVEL SENDERS. THE LARGE SUMP AREA IS PLUMBED WITH TWO 1/4NPT FITTINGS FOR POSITIVE PICK UP AND FUEL INJECTION APPLICATIONS. TANKS ARE MANUFACTURED WITH GOVERNMENT APPROVED FOR FUEL APPLICATIONS CROSS-LINKED POLYETHYLENE MATERIAL. USE WITH FUEL LEVEL SENDER V224225 AND/OR FUEL SENDER COVER TKPSCAP, THREADED CAP FOR POLY SUMP TANKS