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20 Best 4 Inch Flexible Intake Hose of 2023 – Romance University
After hours researching and comparing all models on the market, Romance University finds out the Best 4 Inch Flexible Intake Hose of 2023. Check our ranking below.
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- Memory-flex design helps retain its position and bends
- Helpful for creating a custom intake system
- Can be used to bring cold air into the engine
- 41 inches of ducting and two threads on rubber boots
- Diameter 4 inch, inch Thickness : 1mm, Length : 1 meter / 3.3 feet
- This ducting is made from Silicone coated glass fiber fabric
- Smooth interior, highly flexible, Ultraviolet resistance, corrosion resistance, wear and durable. High Performance ratings with excellent reliability in all conditions.
- Working temperature: -94 Deg F to 572 Deg F
- Application: For cold and hot air circulation conveying system, such as the plastic industry particle dryer, for printing machines, blowers and compressors, exhausting gas, engine construction, engine warming, train hot air circulation system, aviation equipment and military equipment.
- 【Air Cooling Duct Size】Diameter wide: 4in (10.16cm), Length: 6.6 feet (2 meter), Temperature Range: -95°F~575°F, suitable for use in high-temperature and demanding conditions. Please allow a tolerance of 3-5mm.
- 【Materail】Made of double-layer solid flame retardant silicone + fibreglass fabric material, support with spring steel wire internal. The air duct temperature resistance, corrosion resistance, flexible, internal smooth and strong sealing. TIPS: PLS MUST WEAR GLOVES when you touch and use it because of the fiberglass!! (Pair of glove include in package)
- 【Wide Application】Cooling air ducting use for automotion cold and hot air circulation conveying system, such as automotive, hydroponic planting rooms,diesel heaters,laser engraver, blowers and compressors, heating and cooling transportation and air system needs.
- Designed for ventilation applications including HVAC, dryer, grow rooms and tents.
- Four layer design makes it more durable and resistant to leaks, tears, and cuts.
- Steel-wire spiral structure is flexible and easy-to-install in hard to reach places.
- Constructed of Aluminum and thermoplastic, tube can be shortened for various applications.
- Ducting Size: 4” | Length: 25 feet | Includes two stainless steel 4" duct clamps
- Noise Reducer&Absorption：The internal structure of glass wool is fluffy and the overall density is large, noise can be reduced by allowing some of the sound waves to escape through the holes rather than reflecting, can decrease the noise by up to 50%
- Thermal Insulation：This Flex Duct is intended to be used in heat preservation, cooling, ventilation, with a good thermal insulation performance, works well with your portable ac device, temperature endurance range from -22°F ~ 302 °F (-30℃ ~ 150℃)
- Four Layer Protection：Heavy-duty four layer protection design, 1 * PVC+2 * aluminum foil+1 * centrally glass wool with 2 clamps, and the outermost layer of this insulated flexible duct can prevents cute “pets” from biting and breaking
- Anti-Corrosion & Durable：Thick layer of PVC&2 layers of Aluminum on this flexible ducting prevents gas leaks effectively. Works with extractor and exhaust inline duct fans, carbon filters, also be used as a boat blower hose
- Variety of Applications：Hon&Guan insulated flexible duct is suitable for HVAC system. It will move and deliver air in Kitchens (cooking exhaust), Green Houses and Grow Rooms (Air Circulation, Intake, Exhaust and Light Fixture Cooling), Bathrooms (Smell and Moisture Exhaust), Dryer Rooms, Grow Tents and other applications etc
Last update on 2025-07-03 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API
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FAQ:
Q: What is the air intake hose made of?
A: When the gas pedal is pressed, the throttle body opens so the engine can draw air through the air filter and air intake hose into the engine. The air is then distributed through the intake manifold and eventually into the cylinder to be mixed with fuel. The air intake hose is made of rubber or plastic and can crack or leak over time.
Q: How big is a 4 inch flex hose?
A: 4 inch diameter x 10 foot long Ultra Flex Clear Vue Heavy Duty PVC Dust Debris and Fume Collection Hose MADE IN USA! . . Temporarily out of stock.
Q: How does a spectre air intake hose work?
A: This Spectre air duct hose attaches directly to a 4 inch air box inlet, plenum, intake tube or mounting plate to bring cool air into the engine. All Spectre air intake components are designed and built using high quality materials and engineered for optimum fit and function.
Q: What should I do if my air intake hose is leaking?
A: The air intake hose is made of rubber or plastic and can crack or leak over time. If you have a leak in your air intake hose, you may notice a loss of power, rough idling, or poor gas mileage. This can be similar to the symptoms of a fuel injection problem and should be checked as well.