MT Valves & Fittings product. Available references and published specifications: • 13B61054015 — measures: THREADED FLANGE PN10/PN16/PN25/PN40 13B-A 1.4307/A-304L DN0; weight (kg): 0.72; small / large box: 1 / 1 • 13B61054020 — measures: THREADED FLANGE PN10/PN16/PN25/PN40 13B-A 1.4307/A-304L DN0; weight (kg): 1.1; small / large box: 1 / 1 • 13B61054025 — measures: THREADED FLANGE PN10/PN16/PN25/PN40 13B-A 1.4307/A-304L DN0; weight (kg): 1.25; small / large box: 1 / 1 • 13B61054032 — measures: THREADED FLANGE PN10/PN16/PN25/PN40 13B-A 1.4307/A-304L DN0; weight (kg): 1.81; small / large box: 1 / 1 • 13B61054040 — measures: THREADED FLANGE PN10/PN16/PN25/PN40 13B-A 1.4307/A-304L DN0; weight (kg): 2.1; small / large box: 1 / 1 • 13B61054050 — measures: THREADED FLANGE PN10/PN16 13B-A 1.4307/A-304L DN050; weight (kg): 2.4; small / large box: 1 / 1 • 13B61054065 — measures: THREADED FLANGE PN10/PN16 13B-A 1.4307/A-304L DN065; weight (kg): 3; small / large box: 1 / 1 • 13B61054080 — measures: THREADED FLANGE PN10/PN16 13B-A 1.4307/A-304L DN080; weight (kg): 3.8; small / large box: 1 / 1 • 13B61054100 — measures: THREADED FLANGE PN10/PN16 13B-A 1.4307/A-304L DN100; weight (kg): 4.4; small / large box: 1 / 1 Price and local availability on request. Source: https://mtspain.net/en/threaded-forged-flange-une-en-1092-1-stainless-steel-a304l/