A reliable upgrade for any side‑entry toilet cistern, the Half‑Size High‑Pressure Ballcock Valve Kit (1/2″ × 4½”) delivers smooth, consistent flushing while protecting your cold‑water system from wear.
What’s inside
– 1 × 1/2″ high‑pressure flush valve (brass body) with two securing nuts and a pipe‑end screw cap
– 1 × 4½” plastic ball float fitted with a brass‑threaded mount
Key benefits
– Precise control – Adjustable arm lets you fine‑tune the float height for optimal water usage.
– Durable construction – Brass valve and brass‑threaded ball mount resist corrosion; the plastic float is lightweight yet sturdy.
– Easy installation – Designed for side‑entry cisterns, the kit complies with BS 1212/1 and BS 2456 standards, fitting standard 5/16″ BSW threads.
– Ideal for domestic cold‑water systems – Handles high‑pressure lines up to 1/2″ without leaking or loss of performance.
Specifications at a glance
| Component | Size | Material | Thread | Approx. Length |
|---|---|---|---|---|
| Flush valve | 1/2″ BSP | Brass | 5/16″ BSW | 295 mm total, 210 mm arm |
| Ball float | 4½” | Plastic (ball) / Brass (thread) | 5/16″ BSW | — |
Upgrade your bathroom with this premium kit for a quieter, more efficient flush and longer‑lasting hardware. Perfect for DIY repairs or professional installations, it’s the hassle‑free solution every homeowner needs.





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