Aro-Flo Series Air Line Filter/Regulator/Lubricator Combination Unit, 1/4 NPT Ports, 61 SCFM Flow Rating, Manual Drain

All three functions come built into this one assembly. The filter stage pulls out solid particles and liquid contaminants from your compressed air line, the regulator holds your pressure steady anywhere in the 0 to 140 psig range, and the mist-type lubricator keeps a consistent oil supply moving to your downstream tools. The three components in this combination are the F35221-400 filter, R37221-600 regulator, and L36221-100 lubricator, and they ship together as a ready-to-install unit. One thing worth knowing is that they need to be installed in that specific order, filter first, then regulator, then lubricator, going downstream. That sequence matters for the system to work right.