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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.

2,159 Reviews Scanned

Rank No. #1

Spectre Performance 9751 Black 4" Air Duct Hose

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

Rank No. #2

Dryer Vent Hose, 4'' Insulated Flexible Duct 16FT with 2 Duct Clamps, Heavy-Duty Three Layer Protection for HVAC Ventilation, Duct Fan Systems

[Low Nosie Silencer]: Designed for reducing noise from fans and carbon filter systems, can decrease the noise by up to 50%.
[4" Ducting Lightproof]: Thick layer of Black PVC on Hon&Guan ducting prevents light leaks. Works with exhaust and intake fans, carbon filters and hooded lights which are 4" in diameter
[3-Layer Tough]: Keep your ventilation system free of rips and pin holes. Under the Black PVC layer our ducting is built with 2 layers of Aluminum Foil With a layer of PET and Steel Wire Helix to preserve the shape,keep your ventilation system free of rips and pin holes
[Flexible and Easy to Use]: Hon&Guan 4 Inch Duct is super flexible and easy to install, it will slide right on your Duct Fan, Vent Exhaust, Carbon Filter or Light Reflector.This Ventilation Duct is 4 Inches in diameter and comes in one 16 Feet Long Piece, which can be cut into as many pieces as you need using a wire cutter and a paper knife
[Variety of Applications]: Hon&Guan Ducting 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.

Rank No. #3

Sporacingrts Air Intake Pipe Inlet Hose Adjustable 76mm Flexible Cold Air Intake Turbo Univer sal Red 3inch 76mm

【Effect】Flexible air pipe that can be used to introduce external air, etc. into the engine room. Injecting fresh air into the engine room is superior to the thermal Countermeasures
【Feature】Because it can be bent freely with snake belly, it can be installed at the preferred angle. It can be easily handled in a small engine room
【Material】Made of high quality PVC material with wire core to hold its shape，The funnel at both ends of the hose is aluminum
【Easy to install】The hose band is fixed for fixing, so you can easily install it
【Fitment】Universal fit for most vehicles with intake, tube and hose size 76mm.

Rank No. #4

45 Degree 4-Ply Elbow Coupler Silicone Hose 4inch(102mm) with T-Bolt Clamps for Turbo Intake Intercooler Pipe Length 102mm Thickness 5mm

The silicone hose is made of high quality silicone,4-Ply,Leg Length 102mm,Thickness 5mm.
Universal Application for 45 degree connecting turbo piping or intake piping. UV and ozone resistant, Great for marine and industrial use, etc.
Silicone 4-Ply 90 degree silicone hose, Inner Diameter: 4"(102mm). Length: 102mm one leg. Thickness: 5mm. Size tolerance: +/- 0.5MM.
Working Temperature: -76 Degree F (-60 Degree C)- +500 Degree F (+260 Degree C). Bursting Pressure: 2MPa.
Package including: 1pc silicone 45 Degree Elbow Coupler Hose, 2pcs Stainless steel Hose Clamps.

Rank No. #5

AC PERFORMANCE 4" ID Automotive Silicone Flexible Brake Cooling Air Ducting Induction Intake Pipe Hose, Length 1 Meter (3.3 Feet), Black

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.

Rank No. #6

TuoLauthon 90 Degree Elbow Coupler Hose,Length 4inch(102mm),4-Ply Reinforced, ID 4inch(102mm) with 2PCS Clamps for Turbo/Intercooler/Intake Piping Coupler

Size: ID 4inch (102 mm ); Length 4inch(102mm).Reinforcement: 0.2inch (5 mm) thickness and 4-Ply Nylon.
Material stability: Superb resistant to UV, water, ozone, oxygen and high temperature.
Temperature resistance: -60 to 220 C (-76 to 428 F) high temperature silicone hose. Working pressure 85 PSI / burst pressure 245 PSI 90 degree reducer silicone hose.
Application: Universal for Connecting Turbo Piping or Intake Piping.Not for oil or fuel transfer.
Package including: automotive high performance silicone hose,with 2pcs stainless steel Clamps.

Rank No. #7

Ventifan Dryer Vent Hose Flexible Aluminum Foil Air Ducting for HVAC Ventilation Fan,Black (4 Inch 8ft)

[Flexible Material]- The Dryer Hose is made of 2 layers of aluminum foil and a built-in corrosion-resistant steel wire spiral, The PVC film help to be light-proof and noise reduction.
[High Temp Resistant]- Dryer exhaust hose fire, no harmful gas release at high temperature. Forms a tight seal to direct fumes and humidity safely away from living spaces. The temperature endurance range is -22 - 302 F. (-30°C - 150°C).
[Wide Application]- Flexible ducting is applicable for HVAC, clothes dryer, kitchen exhaust fan, grow tent, green room, hydroponic system, It can also be used to cool closets, racks, and cabinets.
[Easy to Install]- The dryer vent hose can be cut to the required length, the air ducting is flexible to bend at any angle,very convenient.
[Dimensions]- 4 inch x 8 feet;4 inch x 25 feet;6 inch x 8 feet;6 inch x 25 feet. 4 inch, This dryer duct is 8 feet long when fully extended, and the ducting can bend freely. It only takes up a little space when not in use due to the flexible length of the inline fan.

Rank No. #8

QWORK Straight Coupler Hose, 2 Pcs 4" ID 4-Ply Reinforced Silicone Hose for Marine and Industrial

Rugged and Reliable: Made of carbon steel material, galvanized surface treatment, high hardness, durable, corrosion-resistant, resistant to bending, used for a long time.
Connection: General application for connecting turbo piping or intake piping.
Widely used: Widely used in marine and industrial, anti-ultraviolet and ozone.
Reinforced: Heavy-duty pressure connection, suitable for harsh engine environments, extreme temperatures, and various pressure ranges that require high performance levels.
The package contains: 2 Pcs 4 inch ID Straight Silicone Coupler Hose.

Rank No. #9

Straight Reducer Coupler Silicone Hose ID 3.5inch to 4inch 4-Ply with Stainless Steel T-Bolt Clamp for Turbo/Intercooler/Intake Piping

Coupler Size: 3.5 to 4 inches(89mm to 102mm),Made of High Temp Reinforced Pure Silicone
4-Ply Reinforced High Temperature Silicone Coupler and The hose material is high quality silicone, many color and size to choose
Min temperature: -60 C/-140 F. Max temperature: 230 C/428 F. Bursting pressure: 2MPA.Length 3" (76mm), Thickness: 5mm
Includes 2pcs Stainless Steel T-bolt clamps
Perfect for air intake, intercooler piping and other turbo applications.

Rank No. #10

Autobahn88 Automotive SCAT Flex Duct (Silicone-Impregnated Fiberglass, Steel Wire Reinforced), Inner Diameter 51mm (2"), Length 1 Meter (3 Feet)

Light-weight and high flow racing performance design. Typical use like : inline air cooling, cool air intake and re-direction, enhancing filter flow rate, improving throttle response and engine performance, reducing engine stalling, improving poor Engine starting
Silicone-Impregnated Fiberglass structure for high temperature application
Steel Wire Reinforced structure enables hose flexibility and durability
Operation temperature range : -40 Deg C ( -100 Deg F ) to 250 Deg C ( 480 Deg F )
Mounting can use hose clamp or wire

Rank No. #11

TerraBloom Flexible 4 Inch Ducting - Black 8 Feet Flex Aluminum Duct with 2 Clamps – 4 Layer HVAC Ventilation Air Hose - Great For Grow Tents, Dryer Rooms, House Vent Register Lines

4 INCH x 8 FT DURABLE FLEX DUCT - We made this flexible aluminum 4" ducting with an extra layer of PVC outside for added durability. Gone is frustration from the accidental rips and tears in thin exposed aluminum ducting products. This 4" vent hose will work for your dryer, duct fan, grow tent, or whenever you need to move air from one point to another.
4 LAYER PROTECTION- Our 4 inch duct hose Keeps your ventilation system free of rips, pin holes and resistant to leaks. Under the White PVC layer our ducting is built with 2 layers of Aluminum Foil With a layer of PET and Steel Wire Helix to preserve the shape
FLEXIBLE & EASY TO USE- TerraBloom 4 inch air ducting is super flexible and easy to install. It will slide right on your Duct Fan, Vent Exhaust, Carbon Filter or Light Reflector. We include a pair of 4 Inch Clamps to make the installation a breeze
4" DIAMETER WITH ADJUSTABLE LENGTH- This 4 inch flexible duct comes in one 8 Feet Long Piece, which can be cut into as many pieces as you need using a wire cutter and a paper knife
APPLICATIONS - TerraBloom 4inch duct is suitable for any Heating Ventilation & Air Conditioning (HVAC) Purposes. 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 Tent ducting and other applications you have in mind

Rank No. #12

Spectre Performance SPE-9775 4" Flex Boot, Black

EPDM/TPE rubber
Durable design
Available in black
Not recommended for turbo-charged and super-charged engines

Rank No. #13

(1-Pack) 4 Inches Outer Diameter Flexible Hose Cuff Coupler with Integrated 2 Dust Collection Hose Clamps - Rubber Vacuum Hose Connector

FITS 4-INCH DUST COLLECTION HOSES - The flex cuff’s inner diameter is 4 inches, an outer diameter of 4 9/16 inches, and a length of 2 1/2 inches
INTEGRATED STEEL HOSE CLAMPS - These integrated hose clamps can provide an airtight and consistent seal that won’t loosen over time. Pre-molded indents provide a secure seat for the hose clamps
HIGHLY REUSABLE FLEXIBLE CUFF CONNECTOR - There’s no need for duct tape, screws, or other fasteners. The integrated hose clamps make the coupler highly reusable
HEAVY-DUTY CUFF - Thick and tear-resistant. The dense and durable rubber construction ensures that the cuff connector is usable for longer, even with regular use and reuse
FLEXIBLE RUBBER FOR VERSATILE USE - Flexible enough to provide an airtight seal even on slightly smaller or larger hoses. Works on different dust collection hoses, tubings, fittings, reducers, and adapters

Rank No. #14

Cold Air Intake Pipe, 3" Universal Car Cold Air Intake Inlet Hose Flexible Duct Tube Pipe Kit for Enhancing Filter Protections

【Enhance Filter Protections】: This flexible air intake hose can maximize airflow into the combustion chamber, enhance filter protections, improve throttle response and restore engine performance
【Compatible】: Universal Car Air Intake Pipe fit for most vehicles with intake, tube and hose size 3inch (76mm)
【Flexible】: 3" car cold air intake inlet hose can be extented to 100cm (39.4inch), 360 degree fully flexible
【High Quality Material】: The air intake hose is made of high quality aluminum and rubber material, high/low temperature resistant and anti-, durable to use
【Easy Installation】: Features direct clamp-on design, designed with mounting clamps for easy installation. If you have any problem or concern about this 3" universal flexible car cold air intake hose, please feel to contact us, we promise to help you solve it well

SaleRank No. #15

QWORK 3" Air Duct Hose, Extendable to 39-3/8", Adjustable Universal Car Cold Air Intake Inlet Pipe Flexible Flexible Duct Tube Hose Kit

Premium and Durable: Made of high-quality aluminum and rubber material, durable construction, weather-proof, temperature resistance, corrosion-resistant, resistant to bending, used for a long time.
Easy Installation: With mounting clamps, 2 aluminum mounting clamps and 2 rings, easy to install. Suitable for most vehicles with intake, tube and hose size 3 inch (76mm).
Adjustable: Inner dia: 3 inch, unstretched length: 12-3/16”, can extend to 39-3/8”, 360 degree fully flexible.
Enhanced Performance: This intake pipe filter system enhances filter protections, improves throttle response, and boosts overall engine performance.
Flexibility: The 360-degree fully flexible design allows for easy installation and optimal placement, allowing you to customize the intake system for your specific needs. Get the perfect fit for your automobile or car turbo.

Rank No. #16

AC Infinity Flexible 4-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 25-Feet Long for Heating Cooling Ventilation and Exhaust

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

Rank No. #17

YSSOA 4" Non-Insulated Air Aluminum Ducting Flexible Dryer Vent Hose 8 Feet Long for Heating Cooling Ventilation and Exhaust, 2 Clamps Included, Silver

Ducting feature: built-in steel wire for reinforcement and long lasting performance. Flexible length for exhaust fan blower/inline fan; when not in use, it takes up little space
Ducting size: 4 inches (diameter) x 8 feet (length) when fully extended. Temperature endurance range from 0 ~ 185°F. (-18℃ ~ 85℃)
Fire proof coating: flexible ventilation ducting made from high-quality flame-retardant aluminum and built-in corrosion-resistant wire helix for reinforcement and lasting performance
Easy installation: 1 pairs of 4 inch metal clamps made from stainless steel
Applications: kitchens (cooking exhaust), green houses and grow rooms (air circulation, intake, exhaust and light fixture cooling), bathrooms (smell and moisture exhaust), grow tents, etc

Rank No. #18

NEBURORA 3 Inch Hose Clamp Adjustable 304 Stainless Steel Duct Clamp 4 Pack Worm Gear Clamps 2.4"-3.2" Diameter Fuel Line Hose Pipe Clamp for Dryer Vent Air Duct Automotive Plumb

4 Pack 3 inch hose clamps stainless steel, flexible and durable metal fuel line hose clamp to provide an excellent seal or fastening for a variety of hose materials
Flexible Adjustable: stainless steel hose clamps with wide adjustable diameter sizes ranging from 2.4inch-3.2inch /59-82mm, secures different diameter ducting tightly in place
Durable Material: 3" pipe clamps made of high quality 304 stainless steel, rust-proof, water-proof, corrosion-resistant, strong, durable, and can be reused
Easy to use: a worm gear mechanism designed to adjust the clamp’s diameter to precisely apply sealing pressure, loosen or tighten the screw of hose clips to adjust the suitable size
Widely Used: The 3" metal hose clamps are used to secure ducting, dryer vents, pipes, hoses, cables, tubes, and fuel lines in industrial, mechanical, automotive, agriculture, boat, household, etc

Rank No. #19

AC Infinity Flexible 4-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 8-Feet Long for Heating Cooling Ventilation and Exhaust

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: 8 feet | Includes two stainless steel 4" duct clamps

Rank No. #20

Premium 4-Inch Dryer Vent Hose - 8ft Long Flexible Duct with Heavy-Duty Four-Layer Protection - Ideal for Heating, Cooling, Ventilation - Includes Clamps and Insulated Tape

Four-Layer Thickness: Featuring two layers of aluminum foil ducting tightly wrapped with black PVC and PET film, this ducting ensures exceptional durability and leak resistance. Say goodbye to worries of leaks and enjoy reliable airflow. Upgrade now for enhanced performance!
Thermal Endurance: With a temperature endurance range from 0°F to 185°F (-18℃ to 85℃), this vent hose can handle various dryer operating temperatures, ensuring stability and durability.
Easy Installation: No special tools required. This 4-inch flexible ducting is easy to cut and connect, allowing for a hassle-free DIY installation, reducing labor costs.
Excellent Quality: Crafted with double thickened aluminum foil, polyester film, and steel wire, our vent hose delivers outstanding durability, leak resistance, tear resistance, and high-temperature resistance.
Wide Application Range: Primarily used in HVAC systems, kitchen range hoods, dryers, bathrooms, planting tents, and hydroponic chambers. Its versatility makes it suitable for a broad range of applications.

Last update on 2023-08-05 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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FAQ:

Q: What kind of air intake hose do I Need?

A: An air intake hose from Crushproof® Tubing is the answer to awkward, rough, and loose connections on your air intake system. Why struggle with wire snips, scissors, tape, and adapters when you could have a custom length air intake hose?

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: Is the factory air cleaner hose oval or oval?

A: Used it to replace the factory hose which at the air cleaner base is oval and the intake port between the radiator and headlight is round.You can shape this hose,I squeezed it to oval on one end and it fits OK.Good quality product and its universal application is helpful. Beware: Coupler threads don’t match the hose.