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🚽What You Receive: You get a value pack of diaphragm washers (3 pieces). Each washer has a diameter of 27 mm and is made from flexible, high‑grade rubber combined with durable plastic. Designed as a direct replacement for worn or leaking cistern fill valves. 🚽Quick, DIY Fix for Common Toilet Problems: Stop slow filling, constant running, noisy operation, or water leaks without calling a plumber. Swap out the old washer in minutes. A cost‑effective solution that saves you both time and money compared to replacing the entire fill valve unit. 🚽Flexible & Long‑Lasting Seal: The rubber material remains flexible to create a tight seal around the valve, while the plastic core provides structural integrity. Resists cracking, mineral buildup, and wear from regular water exposure. Helps maintain consistent water level control. 🚽Simple Step‑by‑Step Installation: Turn off the water supply, unscrew the valve cap, align the notches on the new washer with those inside the valve, insert it, and tighten the cap back. No special tools or plumbing experience needed. The alignment notches ensure a perfect fit. 🚽Perfect Fit for Most Standard Toilets: With a 27 mm diameter, these washers are compatible with the majority of cistern inlet valves. Ideal for homeowners, landlords, and maintenance professionals. Keep a spare on hand for ongoing toilet maintenance without hunting for parts.