DIF vs. DFU vs. IDN

What do the three terms represent: DIF = Disposable In-Line Filter DFU = Disposable Filter Unit IDN = In-Line Disposable Essentially, the three terms thing varys by manufacturers. Regardless, of the term, they all mean a small point of use completely encapsulated filter (typically a nylon body) with a disposable microfiber element ultrasonically welded inside […] Read more »