
OPW
OPW MFPD-PAK 21GU Retail Packaged Mis-Filling Prevention Device offers the industry's most effective and affordable insurance policy against mis-filling mishaps – actually stopping them before they happen. There is no better way to protect your investment and the environment. The MFPD-PAK is permanently installed in DEF tank fill pipe. Contact your vehicle supplier and specify the OPW DEF Mis-Filling Prevention Device.