Fluidmaster Fill Valve Bottom Entry 1/2 Inch B661AT1/2B

The Fluidmaster Torbeck fill valve is designed for reliable cistern refilling across a range of plumbing pressures. It uses interchangeable restrictors to optimize water flow, supporting refill performance in both high- and low-pressure systems, and helping to manage overflow risk. The system emphasizes precise installation and durable construction, with components designed to protect plastic parts and extend service life. In addition to the Torbeck setup, the collection includes side-entry and bottom-entry fill valves featuring different shank configurations to fit various cisterns and water tanks. These valves are intended to deliver quiet, fast filling while accommodating diverse supply conditions and ease of maintenance with quick-release features.

Key features

• Interchangeable restrictors optimize flow
• Supports high- and low-pressure refill
• Protects against overflow risk
• Durable components protect plastic parts
• Precise installation improves flow accuracy
• Easy maintenance with quick-release option

Overview and compatibility

Bottom-entry fill valve with brass shank (1/2″) provides a sturdy connection for reliable performance. Side-entry fill valve with a 1/2″ plastic shank offers flexibility for high or low pressure systems and convenient maintenance. Both variants are designed for cisterns or water tanks and aim for quiet, fast fill while maintaining accurate water levels under varying pressures.