A reliable, easy‑to‑install 1/2″ bottom‑entry ball fill valve is essential for keeping your toilet cistern filling smoothly. This premium replacement part features an adjustable float arm and a pivoting thread that lets the ball float move freely, ensuring precise water level control on both high‑ and low‑pressure systems.
Key benefits
– Adjustable float arm (180 mm‑280 mm) fits most traditional bottom‑entry cisterns.
– Swivel float adapter and locking clip prevent wobble and reduce wear.
– Simple “plug‑and‑play” installation with full instructions included.
Technical specs
| Specification | Detail |
|---|---|
| Thread size | Standard 1/2″ BSP (plastic) |
| Working pressure | 0.2 – 6 bar |
| Flow rate @ 2 bar | 0.167 L/s |
| Compatible models | Universal – works with the majority of bottom‑entry toilet tanks (verify dimensions before purchase) |
Designed for durability, this valve handles a wide pressure range while maintaining consistent refill speed. Whether you’re replacing a leaking valve or upgrading an older system, the adjustable arm lets you fine‑tune the water level to avoid overflows and conserve water.
Quick tip: After fitting the valve, adjust the float arm until the water stops just below the overflow tube—this gives optimal performance and reduces waste.
Upgrade your toilet’s reliability today with this versatile bottom‑entry ball fill valve.





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