Sioux Chief 663 Self-Seal Pipe Insulation Sleeve, 2-1/8" ID x 3/8" Wall, 6' Sections

Sioux Chief 663 Self-Seal Pipe Insulation Sleeve, 2-1/8" ID x 3/8" Wall, 6' Sections

The Sioux Chief 663 is a self-seal pipe insulation sleeve built to wrap and protect copper, CPVC, or PEX water lines with a 2-1/8" inside diameter and a 3/8" wall thickness for consistent, even coverage along the run. Individual sections measure 6' in length, and the 663 is available in total box lengths ranging from 90 Feet up to 408 Feet, letting plumbers match total coverage to the size of the job. The self-sealing adhesive seam closes the insulation around the pipe without additional tape, contact cement, or staples, speeding up rough-in and retrofit insulation work. Manufactured in the United States, the Sioux Chief 663 delivers consistent, ready-to-install coverage for exposed or concealed water lines on residential and commercial jobs.

Key Features

• Trade Size: 2-1/8" ID x 3/8" wall thickness, sized to fit the pipe diameter requiring this insulation.
• Self-Seal Closure: Adhesive seam lets the insulation be applied and sealed around the pipe in one step, without separate tape or contact cement.
• Length Options: Supplied in individual 6' sections and offered in total box lengths from 90 Feet to 408 Feet so crews can select the coverage that matches the job.
• Job-Site Efficiency: Pre-sized, self-sealing design reduces installation steps compared with wrap-and-tape insulation methods.
• Pipe Compatibility: Suited to copper, CPVC, or PEX water lines in exposed or concealed runs.
• Country of Origin: Made in the United States for consistent quality control box to box.

Technical Specifications

• Inside Diameter: 2-1/8"
• Wall Thickness: 3/8"
• Individual Piece Length: 6' sections
• Total Length Options: 90 Feet to 408 Feet per box
• Country of Origin: United States

Typical Applications

• Insulating Hot and Cold Water Supply Lines
• Condensation Control on Exposed Plumbing Pipe
• Freeze Protection for Piping in Unconditioned Spaces
• Residential and Commercial Rough-In Plumbing
• New Construction and Retrofit Insulation Projects
• Mechanical Rooms and Basement Pipe Runs Where Sweating Pipes Are a Concern

Why Sioux Chief?

Sioux Chief builds rough-in plumbing supplies for professional installation, and the 663 self-seal pipe insulation sleeve reflects that same focus on practical, job-ready design. The self-sealing seam and pre-sized 2-1/8" ID x 3/8" wall construction help plumbers move through pipe insulation runs efficiently instead of stopping to tape or glue every section by hand. Offering total box lengths from 90 Feet to 408 Feet in 6' sections keeps trucks and shelves organized for crews running multiple job sizes at once. Combined with U.S. manufacturing that supports consistent quality control from box to box, the Sioux Chief 663 is a straightforward choice for reliable, ready-to-install pipe insulation on your next rough-in or retrofit job.