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Heavy Duty: Our dryer hose is twice thicker than most 3-ply thin option in the market. It is super strong, hand tear and pet puncture resistant. 35 LBS loading 72 hours test as shown in the video. This is a 4 inch flexible duct, not easily snapped, leaked and punctured by dryer vent cleaning brush!
More Heat Resistant: Our aluminum foil dryer vent hose withstands max.215 Fahrenheit degrees high temperature. Compared with black or grey pvc dryer vent hose, it is more aging resistant in hot and moist air condition. The metal material will not melt easily and emit obvious plastic smell.
Lower Pressure Drop: Our flexible dryer vent hose is in narrower wire helix & foil accordion design for larger inside diameter. It exhausts air faster. The design also increases the duct strength and decreases shaking and noise.
Handy To Use: Our dryer vent hose kit is with 2 types of hose clamps. 2 wing nut type are perfect for tight space quick connect or disconnect as no tool's needed. You can use the other two 5/16"hex type by a nut driver for fast torquing. If you have both 90 degree elbows, 4 clamps will be perfect.
Multi-Purpose: Steelsoft 4 inch duct hose is very handy for many HVAC applications, such as clothes dryer vent pipe hose, bathroom exhaust fan, grow tent air duct and portable ac unit etc. It is a heavy duty flex duct hose for less replacement!

Steelsoft 4 inch flexible duct hose is in flexible structure of narrower wire helix and foil accordion. It is constructed with extra thick aluminum laminate for super tear & puncture resistance. It withstands 35 lb for 72 hours and never snapped according to our test.

-Features-

1.Extra thick for prevent crushing easily and pet scratching.

2.High heat available to meet safe local building codes.

3.No plastic smell like PVC type when dryer is running.

4.Narrower wire helix and foil accordion for lower noise.

5.Widely used for dryer vent tubing, grow tent, portable ac etc.

Operating temperature Range: 0℉ to 215℉

Recommended Velocity: 5000 FPM

Recommended Operating Pressure: 6'' w.g. positive

Diameter: 4 inch

Stretch Length: 25 FT

Hose Clamps: 4 PCS