Color Silicone Tube Food Grade Flexible Tubing Hose Rubber Pipe Various Sizes

Match the tube's inner diameter (ID) to your barb's outer diameter (OD). For a leak-free push-fit connection, the tube ID should be equal to or slightly smaller than the barb OD — silicone's elasticity creates the seal. For example, a 4mm ID tube works well on a 4mm barb. If you need a looser slip fit, size up by 1mm.

Yes. The tubing is made from food-grade silicone rubber, which is non-toxic, odorless, and tasteless. It will not impart flavors or leach chemicals into beverages under normal use conditions. It is widely used in homebrewing, winemaking, and food processing transfer lines.

Silicone rubber typically withstands continuous temperatures from approximately -60°C to +200°C (-76°F to +392°F). This makes it suitable for both cold-side applications (refrigeration lines, cold-brew transfers) and warm-side applications (wort transfer, steam-adjacent lines). Avoid prolonged exposure above 200°C.

Silicone's solid-wall construction and inherent flexibility make it significantly more kink-resistant than thin-wall vinyl tubing. For tight bends, use a bend radius of at least 3–4× the tube's outer diameter. If kinking is a concern in a fixed installation, consider using an elbow barb fitting at the corner instead.

Yes — silicone is the standard material for peristaltic pump tubing because it recovers its shape quickly after compression. Select the ID that matches your pump head's specified tube size. The 4mm×6mm and 5mm×7mm sizes are commonly used in lab and homebrew peristaltic pumps.

No. All color variants use the same food-grade silicone base material. The pigments used are mixed into the silicone compound and do not affect flexibility, temperature resistance, or food safety. Color selection is purely for identification and aesthetic purposes — useful when running multiple lines in the same system.

Use a sharp utility knife or scissors on a flat surface. For the cleanest cut, especially on larger diameters (6mm+ OD), a single firm stroke with a sharp blade produces a cleaner face than multiple passes. A clean, square cut ensures a better seal against barb fittings and reduces the chance of leaks.