Sioux Chief 663 Self-Seal Foam Pipe Insulation Sleeve, 3/8" Wall

Sioux Chief 663 Self-Seal Foam Pipe Insulation Sleeve, 3/8" Wall

The Sioux Chief 663 is a self-seal foam pipe insulation sleeve built to wrap and protect copper, CPVC, or PEX water lines with a consistent 3/8" wall thickness. This family is available across inside diameters from 1-1/8" ID up to 1-5/8" ID (1-1/8", 1-3/8", and 1-5/8" ID options), so the specific size is selected to match the pipe being insulated on the job. Each carton provides 240 ft. of insulation supplied in 6' sections, giving plumbers full coverage across long runs without reordering mid-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, whichever inside diameter the run requires.

Key Features

• Trade Size Range: Available in 1-1/8" ID, 1-3/8", and 1-5/8" ID options, each with a 3/8" wall thickness, so the right size can be matched to the pipe diameter requiring insulation.
• Durable Foam Construction: Foam insulation material provides a 3/8" wall for consistent thermal protection across the entire size range.
• Self-Seal Closure: Adhesive seam lets the insulation be applied and sealed around the pipe in one step, without separate tape or contact cement.
• 240 ft. Total Length: Supplied in 6' sections totaling 240 ft. per carton across all ID options, enough to cover long runs without reordering.
• 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

• Configuration: Self-Seal Adhesive Seam
• Product Material: Foam
• Product Size: 1-1/8" - 1-5/8" ID
• Wall Thickness: 3/8" (all ID options)
• Individual Piece Length: 6' sections
• Total Length: 240 ft. per carton
• 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 across its full size range. The self-sealing seam and pre-sized 3/8" wall foam construction, offered in 1-1/8", 1-3/8", and 1-5/8" ID options, help plumbers move through pipe insulation runs efficiently instead of stopping to tape or glue every section by hand. Delivering 240 ft. in 6' sections keeps trucks and shelves stocked for crews running multiple jobs 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, whatever ID size the run requires.