Sioux Chief 490-10465 Anti-Siphon Ballcock Fill Valve Assembly, 8.5"

Sioux Chief 490-10465 Anti-Siphon Ballcock Fill Valve Assembly, 8.5"

The Sioux Chief 490-10465 is a complete anti-siphon ballcock fill valve assembly measuring 8.5" in overall length, built for toilet tank rebuild and rough-in replacement work on residential and light-commercial jobs. Its anti-siphon design is intended to help prevent backflow of tank water into the supply line, which is a feature plumbers commonly look for when a fill valve needs to be swapped out during a service call or tank rebuild. The assembly is manufactured in the United States and ships in case packs of 12 EA, so it is easy to stock on the truck or shelve at the counter for repeat toilet tank service work. As a full ballcock assembly rather than a repair kit, it is designed to install as a single unit when the existing fill valve has failed, is leaking, or is no longer holding a consistent tank fill level.

Key Features

• Trade Size: 8.5" overall length ballcock assembly, sized to fit standard toilet tank rough-in dimensions.
• Anti-Siphon Design: Engineered to help prevent backflow of tank water into the potable supply line during a pressure drop, a key consideration when replacing a fill valve.
• Complete Ballcock Assembly: A full fill valve assembly for direct replacement of a worn, leaking, or malfunctioning toilet tank ballcock.
• Straightforward Rough-In Replacement: Sized and configured for standard toilet tank service and rebuild work, not a specialty or proprietary tank design.
• Country of Origin: Manufactured in the United States.
• Case Packaging: Packed 12 EA per case, making it practical for plumbing supply houses, wholesalers, and service trucks to stock in volume.

Technical Specifications

• Product Type: Fill Valve
• Length: 8.5"
• Configuration: Anti-Siphon Ballcock Assembly
• Country of Origin: United States
• Packaging: 12 EA per case

Typical Applications

• Toilet Tank Fill Valve Replacement
• Residential and Commercial Restroom Plumbing Service
• New Construction Rough-In and Toilet Tank Assembly
• Plumbing Repair and Maintenance Service Trucks
• Supply House and Wholesale Distribution Stock

Why Sioux Chief?

Sioux Chief is a trade-focused name in rough-in and behind-the-wall plumbing supply, and the 490-10465 anti-siphon ballcock assembly reflects that same practical, contractor-first approach. It is manufactured in the United States and built with an anti-siphon feature specifically meant to help protect the potable water line from backflow, an important detail for any plumber replacing a toilet tank fill valve. Packaged 12 EA per case, it is sized for the way supply houses, distributors, and service plumbers actually buy and stock fill valve assemblies for day-to-day toilet tank repair work.