Introducing the OPW 21Gu DEF Nozzle
OPW is leading the way in Diesel Exhaust Fluid (DEF) filling innovation. It is the tried and proven DEF filling standard in Europe – now available in North America to meet 2010 emission regulations.
The 21Gu nozzle and Mis-Filling Prevention Device (MFPD) protects your investment by only filling your DEF tank. Using any other DEF nozzle on the market puts you at risk of mis-filling contamination of DEF into your Diesel tank and all of the expense and misery that comes with that.
This is an affordable insurance policy to protect your investment
only from OPW.