Danfoss AB-QM INOX (stainless-steel) tailpiece for welding, DN 50. A weld-end connection piece that threads onto the AB-QM valve union and is butt-welded to the DN 50 pipe, giving a permanent stainless-steel connection where a welded (rather than threaded or compression) joint is specified. Stainless construction distinguishes it from the standard brass welding tailpiece of the same size. Used with: AB-QM. Net weight 0.686 Kilogram. OEM P/N 003Z1276. EAN 5710104061955. Technical data quoted verbatim from store.danfoss.com (code 003Z1276).