Silicone Tube Hose Pipe | OD 20–400mm | Soft Flexible High-Temp Rubber

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Silicone Tube Hose Pipe | OD 20–400mm | Soft Flexible High-Temp Rubber

HomeDIYer

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By HomeDIYer®

Diameter(Ø):: 20mm【Remarks color】

Packing Qty:: 1m

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$7.96 USD

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In stock (500 units), ready to be shipped

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Silicone Tube Hose Pipe — Flexible High-Temp Solution for Coolant, Air & Fluid Lines

Finding a hose that holds up under heat, pressure, and constant flexing is a real challenge for mechanics, fabricators, and DIY builders alike. Whether you're routing coolant through an engine bay, building a vacuum system, or plumbing an HVAC setup, standard rubber hose often cracks, hardens, or collapses under the conditions that matter most. This silicone tube hose pipe is built for those demanding environments — staying pliable and sealed when other materials give out.

Each order includes one straight silicone hose section, sold by the meter (1m / ≈39.4"). Available in outer diameters from 20mm (≈3/4") up to 400mm (≈15.7"), with sizes stepping through 25mm, 30mm, 32mm, 35mm, 38mm, 40mm, 42mm, 45mm, 50mm, and continuing in increments up to 400mm — select your exact size from the variant dropdown. The hose is made from soft, flexible silicone rubber with high-temperature resistance. Wall thickness and inner diameter vary by size; contact us to confirm ID for your specific variant.

Typical use cases include automotive coolant hose replacement, intercooler piping, radiator bypass lines, shop air distribution, dust collection ducting, and industrial fluid transfer. The wide diameter range makes this silicone hose pipe a go-to for both small-bore vacuum lines and large-bore ventilation or exhaust applications.

ℹ️ Compatibility Note: Diameter listed is the outer diameter (OD). Measure your fitting's OD before ordering. This hose is suitable for coolant, water, air, and vacuum lines. Not recommended for direct petroleum fuel contact without confirming chemical compatibility.

✅ Key Features of These Silicone Tube Hose Pipes

🌡️High-Temperature Resistance — Silicone construction typically withstands continuous service up to 200°C (392°F), making it reliable for engine coolant lines, turbo plumbing, and other high-heat routing.
🔄Stays Flexible Over Time — Unlike EPDM or standard rubber hose that hardens and cracks with age, silicone retains its flexibility across a wide temperature range, reducing the risk of collapse or splitting.
📏Wide Diameter Range (OD 20–400mm) — From small-bore vacuum and coolant lines at 20mm (≈3/4") to large-bore ventilation and ducting at 400mm (≈15.7"), one product line covers a broad range of plumbing and fabrication needs.
✂️Easy to Cut and Install — Cuts cleanly with a utility knife for custom lengths. Works with standard worm-drive clamps, T-bolt clamps, and barbed fittings — no special tools required for most installations.
🌦️UV and Ozone Resistant — Silicone resists degradation from UV exposure and ozone, making this hose suitable for outdoor installations, engine bays, and other exposed environments where standard rubber deteriorates quickly.
🏭Versatile Across Industries — Used in automotive, HVAC, dust collection, food-grade fluid transfer (confirm food-grade certification for your application), and industrial process lines — wherever a flexible, heat-tolerant hose is needed.

📐 Technical Specifications — Silicone Tube Hose Pipe

Material	Silicone rubber
Outer Diameter (OD) Range	20mm (≈3/4") – 400mm (≈15.7")
Available Sizes	20, 25, 30, 32, 35, 38, 40, 42, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 155, 160, 165, 170, 175, 180, 185, 190, 195, 200, 205, 210, 215, 220, 225, 230, 235, 240, 245, 250, 255, 260, 265, 270, 275, 280, 285, 290, 295, 300, 310, 320, 330, 360, 370, 380, 390, 400 mm
Length per Unit	1 meter (≈39.4")
Inner Diameter (ID)	See variant options — contact us to confirm
Wall Thickness	See variant options — contact us to confirm
Temperature Range	Typically -60°C to 200°C (-76°F to 392°F) continuous
Color	Specify color in order remarks (see variant label)
Hose Type	Straight silicone tube / hose pipe
Recommended Clamp Type	Worm-drive (jubilee) clamp; T-bolt clamp for OD ≥ 100mm
Typical Applications	Coolant lines, intercooler piping, vacuum lines, air ducting, fluid transfer, HVAC

⚠️ Color Selection: Color options are available — please specify your preferred color in the order remarks field at checkout. Contact us before ordering if you need to confirm a specific inner diameter or wall thickness for your application.

❓ Frequently Asked Questions

How do I choose the right diameter for my application?

Measure the outer diameter (OD) of the fitting or pipe you need to connect. The hose ID should match or be very slightly smaller than the fitting OD for a snug seal. For example, if your fitting is 25mm (≈1"), select the 25mm variant. When in doubt, size down rather than up to avoid leaks. If you're unsure, contact us with your fitting dimensions and we can help confirm the right size.

What temperature range can this silicone hose handle?

Silicone hose of this type typically handles continuous temperatures from approximately -60°C (-76°F) up to 200°C (392°F), with short-term peaks generally up to 220°C (428°F). This makes it suitable for most automotive coolant and intercooler applications. Always verify your specific application's peak temperature before installation.

Can this hose be used outdoors or in wet environments?

Yes. Silicone is generally resistant to UV radiation, ozone, and moisture, making it suitable for outdoor and exposed installations. It does not corrode or rot like standard rubber compounds. For prolonged submersion or contact with specific chemicals, confirm compatibility with the fluid involved before use.

Is this hose compatible with coolant, oil, or fuel lines?

This silicone hose is well-suited for coolant, water, and air lines. Silicone is generally not recommended for petroleum-based fuels or aggressive oils without confirming chemical compatibility first. For fuel lines, a fluorosilicone or PTFE-lined hose is typically preferred. When in doubt, contact us with your fluid type and we can advise.

How is the length measured — is 1m the inner or outer length?

Each unit is sold as 1 meter (≈39.4 inches) of straight hose, measured along the centerline. The diameter listed in the variant selector refers to the outer diameter (OD). Wall thickness and inner diameter vary by size — contact us to confirm the inner diameter for your specific variant before ordering if ID is critical to your application.

Can I cut this hose to a shorter length?

Yes. Silicone hose cuts cleanly with a sharp utility knife or dedicated hose cutter. A straight, clean cut ensures a proper seal with clamps or fittings. Avoid sawing motions that can leave ragged edges, which may compromise the seal. For angled cuts, mark the hose with a marker before cutting.

What clamp or fitting type works with this hose?

Standard worm-drive hose clamps (also called jubilee clips) work well with silicone hose for most sizes. For larger diameters (typically above 100mm / 4"), T-bolt clamps are generally recommended for a more even clamping force. Barbed fittings and slip-on connectors are also commonly used. Avoid over-tightening clamps, as silicone can deform under excessive clamping pressure.

🛒 Select your diameter and color above, then add to cart — ships from our US warehouse.