Sioux Chief 660-GTR1B Mini-Rester 3/8" OD Female Compression Water Hammer Arrester, No-Lead

Sioux Chief 660-GTR1B Mini-Rester 3/8" OD Female Compression Water Hammer Arrester, No-Lead

The Sioux Chief 660-GTR1B Mini-Rester is a compact water hammer arrester engineered to absorb pipe shock right at the point of use, rather than relying solely on air chambers elsewhere in the rough-in. It features a 3/8" OD female compression connection that installs directly to supply stops, and it is manufactured to a no-lead (NL) specification for use on potable water supply lines. This Mini-Rester ships in bulk packaging of 25 EA, making it a practical stock item for rough-in plumbing crews handling multiple fixture connections per job, from single service calls to full remodel packages.

Key Features

• Trade Size: 3/8" OD compression connection sized for direct installation at supply stops.
• Female Compression Connection: Threads onto the supply stop's compression fitting; do not use pipe dope on the compression threads.
• No-Lead (NL) Construction: Manufactured to a no-lead specification for use on potable water supply lines.
• Compact Mini-Rester Design: Installs close to the fixture so shock absorption happens right at the source of water hammer, rather than at a distant air chamber.
• Direct Supply Stop Installation: No additional adapter fittings required between the arrester and the stop's compression outlet, keeping the connection simple behind the wall or under the fixture.
• Bulk Packaging: Supplied 25 EA per package, sized for rough-in inventory and multi-fixture jobs rather than single-unit retail sale.

Technical Specifications

• Product Type: Water Hammer Arrester
• Trade Size: 3/8" OD
• Connection: Female Compression (FEMCOMP)
• Material: No-Lead (NL)
• Country of Origin: United States
• Packaging: Bulk, 25 EA

Typical Applications

• Residential and Commercial Rough-In Plumbing
• Washing Machine and Dishwasher Supply Stop Installations
• Point-of-Use Water Hammer and Pipe Shock Suppression
• New Construction and Renovation Plumbing Rough-In
• Service and Repair Calls Requiring Quick Point-of-Use Shock Protection

Why Sioux Chief?

Sioux Chief builds the Mini-Rester to a no-lead specification for dependable performance on potable water supply lines, and its compact compression-fitting design lets plumbers add shock protection directly at the supply stop without reworking the rough-in or fishing extra piping for an air chamber. It is a straightforward way to bring point-of-use water hammer protection to fixture supply installations, and the bulk 25 EA packaging keeps crews stocked for job after job without repackaging waste.