• Product purpose: designed for bottom-entry cisterns providing fast filling and reliable inlet control for toilets and sanitary systems
• Certification: WRAS approved for potable domestic water systems assuring regulatory compliance and safety in installations
• Connection size: 1/2 (G 1/2) brass screw and nut tail compatible with standard UK cistern inlet threads enabling straightforward replacement
• Performance details: height approx 260 mm once installed and capable of a fast filling rate of 3.5 L/min at 0.2 bar low pressure with working pressure range 0.1-20 bar
• Material quality: brass tail with plastic body offers durability and corrosion resistance suited to cistern environments
• Installation benefit: bottom feed design enables installation from under the cistern saving space and simplifying maintenance in tight access areas

The NV 1/2 Bottom Entry WRAS Approved Brass Tail Fill Valve PRFBFBW-D is a high-performance cistern inlet valve engineered for bottom-entry toilet systems requiring reliable fill control and regulatory compliance. Certified WRAS approved, it is suitable for use with domestic potable water supplies, giving peace of mind for both installers and property managers. Its 1/2 brass screw and nut tail ensures compatibility with standard cistern plumbing thread connections, while the adjustable float and valve mechanism deliver a rapid fill rate of up to 3.5 litres per minute at 0.2 bar pressure, and supports working pressures from 0.1 to 20 bar. The valve's installation height is approximately 260 mm once fitted, making it suitable for many cistern configurations. Constructed with a metal tail and durable plastic body, it combines strength with cost-effective materials to ensure long service life in the demanding cistern environment. The bottom-entry installation design enables space-saving fixings, ideal for modern bathroom systems where service access is limited. Whether used for new installations or maintenance of existing systems, this fill valve offers a reliable, compliant and efficient solution for toilet cistern fill needs.