AB-QM DN32 1 1/2" with measuring nipples — Danfoss, OEM manufacturer part number 003Z0215. Verified technical data: connection size = 1 1/2" external (male) thread. Applications: commercial and industrial refrigeration, marine reefer plant, cold storage installations, and secondary-loop cooling. Danfoss is a leading manufacturer in this segment; the 003Z0215 sits within the Danfoss refrigeration components range.