Red Food Grade Silicone Tube Hose Vacuum Tubing Pipe Soft Rubber

Match the tube's inner diameter (ID) to the outer diameter of your barbed fitting or nozzle. For a secure push-fit seal, the fitting OD should be equal to or up to 1mm larger than the tube ID — silicone stretches slightly to grip the barb. If you're routing over a rigid pipe, the tube ID should be close to the pipe OD for a snug fit. When in doubt, size down on ID rather than up.

Yes. This tube is made from platinum-cured silicone, which is the food-safe standard used in brewing, winemaking, and food processing equipment. It contains no BPA, phthalates, or plasticizers, and will not impart taste or odor to wort, wine, juice, or water. Always rinse new tubing with clean water before first use.

Platinum-cured silicone tubing of this type typically handles continuous service from –60°C to +200°C (–76°F to +392°F). It is suitable for hot-side brewing applications such as wort transfer from a kettle, as well as cold-side use in fermentation chambers and refrigeration lines. Avoid sustained exposure above 200°C or direct open flame.

The red pigment is dispersed throughout the silicone wall during the curing process — it is not a surface coating or dye. Under normal use conditions (food-safe liquids, temperatures within the rated range), the color does not leach into the fluid or fade significantly. If you notice any color transfer during initial rinsing, flush with clean water until clear before use.

Yes. The smaller ID sizes (1mm × 3mm through 4mm × 6mm) are well-suited for aquarium airline tubing, CO2 diffuser lines, and dosing pump connections. Silicone is more gas-permeable than rigid PVC, which is acceptable for most aquarium air applications. For pressurized CO2 systems above 15 PSI, verify the wall thickness of your chosen size is adequate for your regulator's output pressure.

Silicone cuts cleanly with sharp scissors, a utility knife, or a razor blade. For the cleanest cut, place the tube on a flat surface and use a single firm stroke rather than a sawing motion. A clean, square cut ensures a better seal against barbed fittings. No special tools are required.

This tubing can handle light vacuum applications such as vacuum degassing, siphoning, and low-vacuum laboratory setups. For sustained or deep vacuum (below –0.5 bar), choose a size with a thicker wall relative to the ID — larger wall thickness resists collapse under negative pressure. The 4mm × 8mm, 6mm × 10mm, and larger sizes offer more wall material for vacuum resistance.