MT Valves & Fittings product. Available references and published specifications: • 99902020 — measures: SPARE PART - WATERTIGHTNESS O´RING EPDM TIMO7NC/70 20; weight (kg): 0.01; small / large box: 1 / 1 • 99902025 — measures: SPARE PART - WATERTIGHTNESS O´RING EPDM TIMO7NC/70 25; weight (kg): 0.01; small / large box: 1 / 1 • 99902032 — measures: SPARE PART - WATERTIGHTNESS O´RING EPDM TIMO7NC/70 32; weight (kg): 0.02; small / large box: 1 / 1 • 99902040 — measures: SPARE PART - WATERTIGHTNESS O´RING EPDM TIMO7NC/70 40; weight (kg): 0.04; small / large box: 1 / 1 • 99902050 — measures: SPARE PART - WATERTIGHTNESS O´RING EPDM TIMO7NC/70 50; weight (kg): 0.06; small / large box: 1 / 1 • 99902063 — measures: SPARE PART - WATERTIGHTNESS O´RING EPDM TIMO7NC/70 63; weight (kg): 0.08; small / large box: 1 / 1 Price and local availability on request. Source: https://mtspain.net/en/spare-part-o-ring-nbr-70/