Danfoss / Eaton Aeroquip 4-Wire Spiral TTC Fitting

Dura-Kote plating on this fitting provides superior corrosion resistance, and the system engineering extends hose assembly life, so it should perform well under pressure within expected hydraulic applications.

For sizing, the key callout here is the hose dash size. This fitting is listed as a -12, so it matches a -12 hose size.

Carbon steel construction and a -12 hose dash size make it a solid match for 4-wire spiral hose assemblies at that size. The Dura-Kote plating adds a layer of corrosion resistance that holds up well in demanding environments, so it's not just built for light-duty work.

Dura-Kote plating is what sets this one apart from standard carbon steel fittings. That coating is specifically applied to fight off corrosion over time, which makes it a solid pick for environments where moisture, humidity, or general exposure to the elements is part of the daily reality. Carbon steel on its own would be more vulnerable, but the Dura-Kote finish gives it meaningful added protection and extends the working life of the whole hose assembly.

For fit confirmation, 4S20DS12 is a fitting assembly with a metric female end (End Type 1: Metric, End Gender 1: female) and it is built for hose dash size -12.