Sioux Chief 660-TR0B Tamper-Resistant Mini-Rester Water Hammer Arrester, 1/4" x 1/4"

Sioux Chief 660-TR0B Tamper-Resistant Mini-Rester Water Hammer Arrester, 1/4" x 1/4"

The Sioux Chief 660-TR0B is a tamper-resistant Mini-Rester water hammer arrester built for 1/4" x 1/4" point-of-use supply connections behind the wall or under the fixture. As a dedicated Water Hammer Arrester, it is designed to absorb the pressure spike that occurs when a fast-closing valve, solenoid, or shutoff stops water flow suddenly, reducing the banging, vibration, and pipe strain that repeated hydraulic shock can cause over time. The tamper-resistant (TR) construction and compact Mini-Rester body make it a practical add for single-fixture rough-in work where space behind the wall or under the cabinet is limited and the arrester needs to stay in place, undisturbed, once it is installed. It is sized to install directly at the 1/4" x 1/4" connection rather than being spliced into a larger branch line, which keeps the rough-in simple on service calls and new installs alike.

Key Features

• Trade Size: 1/4" x 1/4" connections, sized for individual fixture supply lines rather than whole-house branch piping.
• Tamper-Resistant (TR) Construction: built to resist unauthorized removal or tampering after it is installed behind the wall, under a cabinet, or at another concealed connection point.
• Mini-Rester Profile: compact body designed to fit into tight rough-in cavities where a full-size arrester will not clear the framing or cabinetry.
• Water Hammer Arrester Function: absorbs the hydraulic shock wave created by quick-closing valves, solenoids, and shutoffs, helping protect nearby fittings, joints, and connections from repeated surge pressure.
• Point-of-Use Installation: intended for installation close to the fixture it protects, in line with the 1/4" x 1/4" supply connection, so the arrester addresses hammer at its source instead of downstream.
• Concealed, Set-and-Forget Design: the compact Mini-Rester footprint and tamper-resistant body are suited to locations that will not be regularly accessed once the wall or cabinet is closed up.

Technical Specifications

• Product Type: Water Hammer Arrester

Typical Applications

• Single-Fixture Supply Line Protection
• Faucet and Toilet Supply Stops
• Washing Machine and Ice-Maker Supply Lines
• Behind-the-Wall and Under-Cabinet Rough-In Plumbing
• Renovation and New Construction Fixture Hookups
• Service Calls Addressing Localized Pipe Hammer at One Fixture

Why Sioux Chief?

Sioux Chief builds rough-in plumbing hardware meant to be installed once and left alone behind the wall, and the 660-TR0B Mini-Rester follows that approach with a tamper-resistant body sized for a single 1/4" x 1/4" fixture connection. For plumbers and contractors dealing with hammer complaints at a specific fixture rather than the whole system, a compact, point-of-use arrester like this is a straightforward way to add shock protection without cutting into or reworking the branch line. Its small footprint and tamper-resistant construction make it a fit for the kind of concealed, low-access locations common in both new rough-in work and fixture-level service repairs.