Sioux Chief 558-M23R Pipe Eye Insulator, 1/2" x 3/4" CTS, Flame-Retardant & Glueable

Sioux Chief 558-M23R Pipe Eye Insulator, 1/2" - 3/4" CTS

The Sioux Chief 558-M23R Pipe Eye Insulator is a flame-retardant, glueable insulator sized to fit 1/2" - 3/4" CTS copper tube, built to cushion and protect pipe where it passes through a framing eye or bored hole in wood framing. Because a single insulator spans both the 1/2" and 3/4" CTS trade sizes, plumbers can stock fewer part numbers while still covering the most common copper tube runs found in residential and light-commercial rough-in work. The glueable design lets installers bond the insulator securely in the eye during framing, and the flame-retardant material adds a measure of fire-safety margin at the penetration point. Sioux Chief ships this insulator 1000 EA per case, and it is manufactured in the United States.

Key Features

• Trade Size: Sized for 1/2" - 3/4" CTS copper tube, so one insulator covers both common CTS trade sizes at the framing eye.
• Flame-Retardant Material: Molded from a flame-retardant material to add fire-safety margin where pipe passes through wood framing.
• Glueable Design: Can be glued into the pipe eye for a secure, permanent fit that stays put through rough-in and finish work.
• Pipe Eye Protection: Cushions copper tube where it passes through a bored framing eye, helping reduce wear and noise at the penetration.
• Bulk Case Pack: Packaged 1000 EA per case, sized for distributor and contractor volume stocking.
• Made in the USA: Manufactured in the United States for consistent quality control.

Technical Specifications

• Product Type: Pipe Eye Insulator
• Trade Size: 1/2" - 3/4" CTS
• Country of Origin: United States
• Packaging: 1000 EA per case

Typical Applications

• Residential and Commercial Rough-In Plumbing
• Copper Tube Passages Through Wood Studs and Joists
• New Construction and Remodel Plumbing Installations
• Distributor and Contractor Bulk Stock Programs

Why Sioux Chief?

Sioux Chief builds the 558-M23R Pipe Eye Insulator with flame-retardant, glueable construction so it performs reliably behind the wall where it can't easily be inspected later. Made in the United States and packaged for volume use, it gives plumbing contractors and distributors a straightforward, code-minded way to protect copper tube at framing penetrations without adding extra part numbers to the truck.