Sioux Chief 660-SB Mini-Rester 1/2" MSWT Water Hammer Arrester

Sioux Chief 660-SB Mini-Rester 1/2" MSWT Water Hammer Arrester

The Sioux Chief 660-SB Mini-Rester is a compact water hammer arrester designed for any residential single-fixture application. It terminates in a 1/2" MSWT (male sweat) connection for a direct solder joint to copper supply tube during rough-in, and it carries an ASSE-AA rating for the fixture load it is intended to serve. Water hammer arresters like the Mini-Rester absorb the pressure spike that occurs when a fast-closing valve stops water flow abruptly, protecting supply piping, valves, and fixture connections from repeated shock. The 660-SB ships bulk packed, making it a practical stocking item for plumbing contractors and distributors handling multiple single-fixture installations.

Key Features

• Trade Size: 1/2" connection sized for standard single-fixture residential supply lines.
• MSWT Connection: Male sweat fitting allows a direct solder joint to copper tube at the point of installation, consistent with typical rough-in practice.
• Mini-Rester Design: Compact water hammer arrester engineered for point-of-use installation behind a single fixture rather than a whole-house or multi-fixture manifold location.
• ASSE-AA Rating: Sized and rated ASSE-AA to match the fixture unit load of the intended single-fixture application.
• Bulk Packaging: Packed 50 EA per case, letting distributors and contractors keep an efficient quantity of single-fixture arresters on hand across job sites.
• Residential Single-Fixture Use: Purpose-built for the supply line serving one fixture, such as a washing machine, dishwasher, or lavatory faucet.

Technical Specifications

• Product Type: Water Hammer Arrester
• Trade Size: 1/2" MSWT
• Rating: ASSE-AA
• Country of Origin: United States
• Packaging: 50 EA

Typical Applications

• Residential Single-Fixture Water Hammer Protection
• Point-of-Use Installation Behind Washing Machines, Dishwashers, and Lavatory Faucets
• New Construction Rough-In Plumbing
• Remodel and Renovation Plumbing Upgrades
• Copper Supply Line Installations Using Sweat Connections
• Distributor and Contractor Bulk Stocking Programs

Why Sioux Chief?

Sioux Chief manufactures the Mini-Rester line to give plumbers a straightforward, single-fixture solution for water hammer control, using a simple 1/2" MSWT solder connection that fits standard copper rough-in without added adapters. The 660-SB is made in the United States and supplied in bulk quantities of 50 EA, so contractors and distributors can stock a consistent, ASSE-AA rated arrester for every single-fixture install on the job.