A reliable 4.5 in copper ball float is essential for keeping your toilet cistern or cold‑water tank working smoothly. Made from solid copper and paired with a 5/16 BSW brass ballcock, this float delivers the perfect balance of buoyancy and durability.
Why copper?
– High thermal conductivity helps the float respond quickly to water level changes.
– Natural antimicrobial properties suppress bacteria and algae, making it ideal for potable‑water and food‑processing environments.
– Corrosion‑resistant construction ensures a long service life even in humid or chemically‑active water systems.
Key features
– Size: 4 ½ in (compatible with most standard cisterns)
– Thread: 5/16 in British Standard Whitworth (BSW) – fits universal ballcock assemblies
– Materials: Copper float, brass thread – both premium and long‑lasting
– Suitable for toilet cisterns, cold‑water storage tanks, feed & vent lines, expansion tanks, and more
Whether you’re upgrading an older toilet or installing a new water‑storage system, this copper ball float offers the performance and hygiene you need without the hassle of frequent replacements. Its high buoyancy and rust‑proof design make it a trusted choice for homeowners, plumbers, and facilities managers alike.
Quick install – universal fit – peace of mind.





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