SGN 16 5/8" flare I/U with sight glass. Danfoss, OEM manufacturer part number 014L0174. Verified technical data: product description = SGP16FN. Applications: commercial and industrial refrigeration, marine reefer plant, cold storage installations, and secondary-loop cooling. Danfoss supplies this segment; the 014L0174 sits within the Danfoss refrigeration components range. See our companion Danfoss product family listings for adjacent variants and accessories.