SGN 06 1/4" flare inlet/outlet with sight glass — Danfoss, OEM manufacturer part number 014L0171. Verified technical data: product description = SGP6FN. Applications: commercial and industrial refrigeration, marine reefer plant, cold storage installations, and secondary-loop cooling. Danfoss is a leading manufacturer in this segment; the 014L0171 sits within the Danfoss refrigeration components range.