Sioux Chief 660-HB Water Hammer Hose Arrestor, 3/4-Inch

Overview

The Sioux Chief 660-HB Water Hammer Hose Arrestor is a compact, piston-type device designed to install at washing machine valve inlets. It features an air chamber to absorb surge energy when a valve closes, which can help dampen the familiar thump that travels through pipes in busy laundry rooms. Sized to provide a sufficient air volume, the arrestor is suitable for both hot and cold supply lines and is approved for installations that do not require access panels, making retrofits straightforward behind appliances and under cabinets.

Why this arrestor may matter in your home

With a dedicated air chamber and a purpose-built volume of air, this arrestor is designed to manage the surge forces generated by closing residential washing machine valves. In real-world laundry setups, such a device can help reduce abrupt pressure changes that often manifest as loud bangs or water hammer, especially on older piping or extended valve runs. The 660-HB emphasizes practicality and ease of upgrade in spaces where access panels aren’t available.

Installation options and performance

• Straight – straight compression arresters install on any ½" nominal copper leg or riser, and are popular for retrofitting ½" nominal air chambers.
• Straight – straight sweat arresters are compatible with press-fitting systems, such as Viega ProPress and all push-fitting systems.
• Straight – PEX mini-resters are available with F1807, F1960 and Viega PEXpress connections.

Tees and in-line configurations

• Tee – hose tee arresters install on washing machine supply valves or directly to the washing machine for flexible placement.
• Tee – full slip tees sweat in-line on ½" CTS near the problem valve or fixture, enabling compact, in-line installations.

Designed for compatibility with a range of pipe materials and connection styles, the 660-HB can be integrated into existing laundry plumbing without extensive rework. Consider it as a practical step toward mitigating sudden pressure shifts in everyday washing routines.