How do I convert the mm sizes to inches?

Divide the mm value by 25.4 to get inches. Common conversions: 4mm ≈ 5/32" (0.157"), 6mm ≈ 1/4" (0.236"), 8mm ≈ 5/16" (0.315"), 10mm ≈ 3/8" (0.394"), 12mm ≈ 15/32" (0.472"), 16mm ≈ 5/8" (0.630"), 25mm ≈ 1" (0.984").

Food Grade Silicone Tubing – Flexible Soft Silicone Hose ID 1mm–25mm, 14 Colors

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Food Grade Silicone Tubing – Flexible Soft Silicone Hose ID 1mm–25mm, 14 Colors

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By HomeDIYer®

Hose ID - Inner Diameter (mm): 3x5

Colour: Orange

Hose Length: 1 M

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$3.75 USD

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In stock (500 units), ready to be shipped

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Flexible Food Grade Silicone Tubing — Cut-to-Length Hose for Brewing, Lab & DIY Fluid Lines

When standard PVC or rubber tubing falls short — cracking under heat, leaching odors into your brew, or stiffening in cold storage — food-grade silicone tubing is the go-to solution for homebrewers, aquarium hobbyists, lab technicians, and DIY plumbing enthusiasts who need a reliable, inert fluid conduit.

Each listing covers 1 meter (≈39.4") of flexible silicone hose. Inner diameters range from 1mm (≈3/64") up to 25mm (≈1"), with a variety of wall thicknesses available depending on the ID×OD combination you select — for example, a 4x6 tube has a 1mm wall while a 4x8 tube has a 2mm wall. Available in 14 colors: Black, Red, Orange, Pink, Yellow, Green, Blue, Lake Blue, Dark Blue, Sky Blue, Bright Green, Purple, White, and Orange Red — making color-coded fluid routing straightforward.

Typical use cases include homebrewing transfer lines and siphon hoses, aquarium air and water tubing, peristaltic pump heads, laboratory fluid transfer, automotive coolant overflow lines, and general-purpose DIY plumbing where a flexible, heat-resistant, odor-free hose is needed.

ℹ️ Compatibility Note: Select the ID (inner diameter) that matches your barb, nipple, or fitting OD for a snug slip-fit. The OD listed is the tube's outer dimension — wall thickness = (OD − ID) ÷ 2. Sizes are in millimeters; see FAQ for inch conversions.

⚠️ Size Tip: Variant names show ID×OD in mm (e.g., "6x8" = 6mm ID, 8mm OD, 1mm wall). If your fitting is measured in inches, divide by 25.4 or refer to the FAQ conversion table below.

✅ Key Features of These Food Grade Silicone Tubes

🌡️Wide Temperature Range — Rated for continuous use from -60°C (-76°F) to 200°C (392°F), making this silicone hose suitable for hot-side brewing lines, autoclave connections, and steam-adjacent plumbing where rubber or PVC would degrade.
🍺Food-Safe & Odor-Free — Made from food-grade silicone (silica gel) that is non-toxic, taste-neutral, and free of plasticizers. Ideal for homebrewing transfer hoses, beverage dispensing lines, and any application where fluid purity matters.
🎨14 Colors for Easy Identification — Color-code your fluid lines by function or circuit. With 14 distinct colors available, distinguishing hot from cold, inlet from outlet, or different chemical lines becomes straightforward in complex setups.
📐Wide Size Range — ID 1mm to 25mm — From micro-bore 1×3mm tubing for precision lab or aquarium air lines up to 25×31mm large-bore hose for coolant or industrial fluid transfer, available in multiple wall thicknesses to match your pressure requirements.
🔄Flexible & Kink-Resistant — Silicone's inherent elasticity allows tight routing around corners without collapsing the bore, maintaining consistent flow in peristaltic pumps, siphon setups, and compact equipment enclosures.
✂️Sold by the Meter — Easy to Cut — Each unit is 1 meter of continuous tubing, cleanly cuttable with scissors or a utility knife. Order multiple units for longer runs; the consistent wall thickness ensures uniform compression fittings along the entire length.

📐 Technical Specifications — Silicone Flexible Tubing

Material	Food-grade silicone (silica gel)
Inner Diameter (ID)	1mm – 25mm (see variant options)
Outer Diameter (OD)	See variant options (ID + 2× wall thickness)
Wall Thickness	Typically 1mm – 3mm depending on ID×OD selected
Length per Unit	1 meter (≈39.4")
Temperature Range	-60°C to 200°C (-76°F to 392°F), typically
Flexibility	Flexible / kink-resistant
Colors Available	14 colors: Black, Red, Orange, Pink, Yellow, Green, Blue, Lake Blue, Dark Blue, Sky Blue, Bright Green, Purple, White, Orange Red
Food Safe	Yes — food-grade silicone, odor-free, non-toxic
UV Resistance	Generally good; prolonged direct UV exposure may cause surface aging
Working Pressure	See variant options — contact us to confirm for specific sizes
Country of Origin	China

❓ Frequently Asked Questions

How do I choose the right silicone tubing size?

Match the inner diameter (ID) to the outer diameter of the fitting or barb it will slip over. For example, a 6mm OD barb typically needs a 6mm ID tube. If you need a snug, leak-resistant fit, choose an ID equal to or 0.5–1mm smaller than the fitting OD — silicone's elasticity will create a seal. The OD listed in the variant name is the tube's outer dimension; wall thickness = (OD − ID) ÷ 2.

Common inch equivalents: 4mm ID ≈ 5/32", 6mm ID ≈ 1/4", 8mm ID ≈ 5/16", 10mm ID ≈ 3/8", 12mm ID ≈ 15/32", 16mm ID ≈ 5/8", 25mm ID ≈ 1".

What temperature range can this silicone hose handle?

Food-grade silicone tubing generally handles continuous temperatures from -60°C (-76°F) up to 200°C (392°F). Short-term peaks up to approximately 230°C are typically tolerated. This makes it suitable for hot-side brewing transfer lines, autoclave connections, and steam-adjacent plumbing where rubber or PVC would soften or crack.

Is this tubing safe for food, beverage, and aquarium use?

Yes. This tubing is made from food-grade silicone (silica gel) that is odor-free, taste-neutral, and non-toxic. It does not leach plasticizers the way PVC tubing can. It is commonly used in homebrewing, aquariums, peristaltic pumps, and laboratory fluid transfer. If your application requires a specific certification (e.g., FDA 21 CFR, NSF), please contact us to confirm.

Can I use this silicone hose outdoors or in UV-exposed environments?

Silicone is generally more UV-resistant than rubber or PVC, making it suitable for outdoor use in most climates. However, prolonged direct UV exposure over many years can cause surface chalking or minor degradation. For permanent outdoor installations, a UV-protective sleeve or shading is recommended to extend service life.

What is the difference between the ID×OD size options (e.g., 4x6 vs 4x8)?

The first number is the inner diameter (ID) — the bore that contacts your fluid or fits over a barb. The second number is the outer diameter (OD). The difference between OD and ID divided by 2 gives you the wall thickness. A 4×6 tube has a 1mm wall; a 4×8 tube has a 2mm wall and is stiffer and more pressure-resistant. Choose a thicker wall when you need higher burst pressure or more rigidity.

How much pressure can this silicone tubing handle?

Working pressure depends on wall thickness and diameter. Thicker-walled variants (e.g., 4×8, 6×10) generally handle higher pressures than thin-walled ones. For gravity-fed or low-pressure systems (typically under 30 PSI), most sizes are suitable. For higher-pressure applications, please contact us with your specific size and pressure requirement so we can confirm suitability.

Can I use hose clamps or barb fittings with this tubing?

Yes. Silicone tubing works well with standard barb fittings — the elasticity creates a tight seal. For pressurized connections, a worm-drive hose clamp over the barb is recommended. Ensure the clamp is sized for the OD of the tubing, not the ID. Avoid over-tightening, which can cut into the silicone wall.

🛒 Select your size (ID×OD) and color above, then add to cart — ships from our US warehouse.

Food Grade Silicone Tubing – Flexible Soft Silicone Hose ID 1mm–25mm, 14 Colors

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Description

Flexible Food Grade Silicone Tubing — Cut-to-Length Hose for Brewing, Lab & DIY Fluid Lines

✅ Key Features of These Food Grade Silicone Tubes

📐 Technical Specifications — Silicone Flexible Tubing

❓ Frequently Asked Questions

Food Grade Silicone Tubing – Flexible Soft Silicone Hose ID 1mm–25mm, 14 Colors

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