MT Valves & Fittings product. Available references and published specifications: • 228421015 — measures: SPHERIC PLASTIC FLOAT 110 M6/1 FLOAT VALVE THREADED ROD 1/2"; weight (kg): 0.08; small / large box: 1 / 110 • 228421020 — measures: SPHERIC PLASTIC FLOAT 130 M7/1 FLOAT VALVE THREADED ROD 3/4"; weight (kg): 0.12; small / large box: 1 / 65 • 228421025 — measures: SPHERIC PLASTIC FLOAT FOR FLOAT VALVE WITH THREADED ROD 1"; weight (kg): 0.2; small / large box: 1 / 30 • 22842103240 — measures: SPHERIC PLASTIC FLOAT FOR FLOAT VALVE WITH THREADED ROD 11/4; weight (kg): 0.35; small / large box: 1 / 18 • 228421050 — measures: SPHERIC PLASTIC FLOAT Ø230 M9/1 FLOAT VALVE THREADED ROD 2"; weight (kg): 0.55; small / large box: 1 / 12 Price and local availability on request. Source: https://mtspain.net/en/spheric-plastic-buoy-for-float-valve-with-threaded-rod/