Combinations
3000 Series heavy-duty compressed air combinations by ARO feature 3/4 or 1 inch NPT port body and consist of filters, regulators, lubricators, and piggybacks forming unique combinations typically strung together in the F+R+L arrangement (three-piece combo) and F/R+L (two-piece combo) arrangement, although other custom configurations are also used depending on specific application needs.
Manufacturer's Specifications