MT Valves & Fittings product. Available references and published specifications: • 64709401615 — measures: MULT. PRESS LOOSE NUT FEMALE ELBOW 16 X 1/2" TYPE U-RED; weight (kg): 0.06; small / large box: 30 / 120 • 64709402015 — measures: MULT. PRESS LOOSE NUT FEMALE ELBOW 20 X 1/2" TYPE U-RED; weight (kg): 0.08; small / large box: 25 / 100 • 64709402020 — measures: MULT. PRESS LOOSE NUT FEMALE ELBOW 20 X 3/4" TYPE U-RED; weight (kg): 0.1; small / large box: 20 / 80 • 64709402520 — measures: MULT. PRESS LOOSE NUT FEMALE ELBOW 25 X 3/4" TYPE U-RED; weight (kg): 0.14; small / large box: 15 / 60 • 64709402525 — measures: MULT. PRESS LOOSE NUT FEMALE ELBOW 25 X 1" TYPE U-RED; weight (kg): 0.19; small / large box: 10 / 40 • 64709403225 — measures: MULT. PRESS LOOSE NUT FEMALE ELBOW 32 X 1" TYPE U-RED; weight (kg): 0.23; small / large box: 8 / 32 Price and local availability on request. Source: https://mtspain.net/en/loose-nut-female-elbow-90o-multilayer-press-fitting-u-profile-red/