MT Valves & Fittings product. Available references and published specifications: • 64727401615 — measures: MULT. PRESS STR. CONNECTOR Ø16X2 - 1/2" LOOSE NUT TYPE U-RED; weight (kg): 0.05; small / large box: 35 / 140 • 64727401620 — measures: MULT. PRESS STR. CONNECTOR Ø16X2,0 - 3/4" LOOSE NUT TYPE U-R; weight (kg): 0.08; small / large box: 30 / 120 • 64727402015 — measures: MULT. PRESS STR. CONNECTOR Ø20X2,0 - 1/2" LOOSE NUT TYPE U-R; weight (kg): 0.07; small / large box: 30 / 120 • 64727402020 — measures: MULT. PRESS STR. CONNECTOR Ø20X2,0 - 3/4" LOOSE NUT TYPE U-R; weight (kg): 0.08; small / large box: 25 / 100 • 64727402515 — measures: MULT. PRESS STR. CONNECTOR Ø25X2,5 - 1/2" LOOSE NUT TYPE U-R; weight (kg): 0.09; small / large box: 20 / 80 • 64727402520 — measures: MULT. PRESS STR. CONNECTOR Ø25X2,5 - 3/4" LOOSE NUT TYPE U-R; weight (kg): 0.12; small / large box: 20 / 80 • 64727402525 — measures: MULT. PRESS STR. CONNECTOR Ø25X2,5 - 1" LOOSE NUT TYPE U-RED; weight (kg): 0.16; small / large box: 10 / 40 • 64727403225 — measures: MULT. PRESS STR. CONNECTOR Ø32X3,0 - 1" LOOSE NUT TYPE U-RED; weight (kg): 0.19; small / large box: 10 / 40 • 64727402620 — measures: MULT. PRESS STR. CONNECTOR Ø26X3,0 - 3/4" LOOSE NUT TYPE U-R; weight (kg): 0; small / large box: 5 / 100 Price and local availability on request. Source: https://mtspain.net/en/loose-nut-female-connector-multilayer-press-fitting-u-profile-red/