MT Valves & Fittings product. Available references and published specifications: • 1713115150200 — measures: STAINLESS STEEL FLEXIBLE CONNECTOR DN13 M1/2"XF1/2" 200MM; weight (kg): 0.1; small / large box: 10 / 60 • 1713115150250 — measures: STAINLESS STEEL FLEXIBLE CONNECTOR DN13 M1/2"XF1/2" 250MM; weight (kg): 0.11; small / large box: 10 / 50 • 1713115150300 — measures: STAINLESS STEEL FLEXIBLE CONNECTOR DN13 M1/2"XF1/2" 300MM; weight (kg): 0.13; small / large box: 10 / 60 • 1713115150350 — measures: STAINLESS STEEL FLEXIBLE CONNECTOR DN13 M1/2"XF1/2" 350MM; weight (kg): 0.14; small / large box: 10 / 50 • 1713115150400 — measures: STAINLESS STEEL FLEXIBLE CONNECTOR DN13 M1/2"XF1/2" 400MM; weight (kg): 0.15; small / large box: 10 / 70 • 1713115150450 — measures: STAINLESS STEEL FLEXIBLE CONNECTOR DN13 M1/2"XF1/2" 450MM; weight (kg): 0.16; small / large box: 5 / 60 • 1713115150500 — measures: STAINLESS STEEL FLEXIBLE CONNECTOR DN13 M1/2"XF1/2" 500MM; weight (kg): 0.18; small / large box: 10 / 50 • 1713115150600 — measures: STAINLESS STEEL FLEXIBLE CONNECTOR DN13 M1/2"XF1/2" 600MM; weight (kg): 0.21; small / large box: 10 / 50 • 1713115150800 — measures: STAINLESS STEEL FLEXIBLE CONNECTOR DN13 M1/2"XF1/2" 800MM; weight (kg): 0.24; small / large box: 5 / 25 Price and local availability on request. Source: https://mtspain.net/en/m-f-dn13-stainless-steel-flexible-connection-m1-2-x-f1-2/