MT Valves & Fittings product. Available references and published specifications: • 511420040 — measures: BUTTERFLY VALVE WAFER UNIV NBR SS DISC FREE SHAFT 1 1/2"; weight (kg): 0; small / large box: 0 / 0 • 511420050 — measures: BUTTERFLY VALVE WAFER UNIV NBR SS DISC FREE SHAFT 2"; weight (kg): 0; small / large box: 0 / 0 • 511420065 — measures: BUTTERFLY VALVE WAFER UNIV NBR SS DISC FREE SHAFT 2 1/2"; weight (kg): 0; small / large box: 0 / 0 • 511420080 — measures: BUTTERFLY VALVE WAFER UNIV NBR SS DISC FREE SHAFT 3"; weight (kg): 0; small / large box: 0 / 0 • 511420100 — measures: BUTTERFLY VALVE WAFER UNIV NBR SS DISC FREE SHAFT 4"; weight (kg): 0; small / large box: 0 / 0 • 511420125 — measures: BUTTERFLY VALVE WAFER UNIV NBR SS DISC FREE SHAFT 5"; weight (kg): 0; small / large box: 0 / 0 • 511420150 — measures: BUTTERFLY VALVE WAFER UNIV NBR SS DISC FREE SHAFT 6"; weight (kg): 0; small / large box: 0 / 0 • 511420200 — measures: BUTTERFLY VALVE WAFER UNIV NBR SS DISC FREE SHAFT 8"; weight (kg): 0; small / large box: 0 / 0 • 511420250 — measures: BUTTERFLY VALVE WAFER UNIV NBR SS DISC FREE SHAFT 10"; weight (kg): 0; small / large box: 0 / 0 • 511420300 — measures: BUTTERFLY VALVE WAFER UNIV NBR SS DISC FREE SHAFT 12"; weight (kg): 0; small / large box: 0 / 0 Price and local availability on request. Source: https://mtspain.net/en/butterfly-valve-free-stem-wafer-type-stainless-steel-a-316-disc-universal-flanged-nbr-soft-seat/