Brass Compression Insert — Tube Support Sleeve for Compression Fittings
The Brass Compression Insert is a tube support sleeve that drops inside soft-wall, plastic, or poly tubing before it's clamped in a compression fitting. By reinforcing the tube from the inside, the insert keeps the wall from collapsing as the compression nut and ferrule are tightened — giving you a consistent, leak-free seal on tubing that would otherwise deform.
Machined from solid brass for corrosion resistance and a clean, burr-free fit. Sized to match standard compression tube ODs from 1/8" through 3/4", so you can stock the full range for low- and medium-pressure air, fluid, and instrumentation lines.
Key features
- Solid brass construction — corrosion resistant and reusable
- Stiffens soft, plastic, and poly tubing to prevent collapse under the ferrule
- Ensures a reliable, leak-tight compression seal
- Eight tube sizes: 1/8", 3/16", 1/4", 5/16", 3/8", 1/2", 5/8", and 3/4"
- For low- and medium-pressure connections without excessive vibration or tube movement
Typical applications
Air lines, coolant and lubrication lines, instrumentation, and general shop plumbing wherever soft or thin-wall tubing terminates in a brass or steel compression fitting.
Choose your tube size above. These brass compression inserts (tube support sleeves) are a low-cost insurance against blown seals and slow leaks on plastic and poly tubing — keep a few of each size on hand for fast, dependable compression-fitting repairs.
NOTE: Actual product may be different from pictured!
Financing Options
Financing Options
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