From $9.80 to $9.80
Description ID PN Dash No. Price / Ft Length Quantity
Ducting Vena HT205-29908-8$9.80
Subtotal $0.00
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Sold by the foot.

The flexible hose Vena HT has excellent flexibility and excellent aging resistance.


These kind of flexible hoses are specially recommended in gas conductions at high temperatures, engine exhaust fume extraction from a point immediately close to the ejection area, electronic units cooling and welding gas aspiration.
  • Hot air extraction in ceramic kilns.
  • Airplane or helicopter cockpit heating.
  • Ventilation and air-conditioning in boats.
  • Protection of electric cables passing through extremely hot areas.
  • Sheathing of pipework transporting hot air.


This product is manufactured with one fiber glass reinforcement with high temperature resistance silicone rubber. The inner part is coated with visible steel wire.


Operational temperature range from -55C (-67F) to +260C (+500F). It may reach up to 300C (+572F) during short periods of time.


  • The fiber glass covered with silicone rubber doesnt contain heavy metals or any fireproof substance.
  • The fiber glass covered with silicone rubber in compliance to EU Directive 2002/95/ECC of restriction of the use of certain hazardous substances (RoHS)
  • FAR/CS 25.853 Appendix F, Part I (a)(1)(ii)&(iv)"Vertical & Horizontal flammability test"
  • AIRBUS DIRECTIVE ABD0031 and AITM 2.0007 B "Optical density test"
  • AIRBUS DIRECTIVE ABD0031 and AITM 3.0005 "Smoke and toxicity test"

Available Sizes

Stock diameter listed in ordering grid. Diameters not listed are available as a special order in full lengths only. Full factory lengths are up to 13 ft. Varies by warehouse. For lengths over 13 ft, contact sales to confirm availability.
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WARNING: Cancer and Reproductive Harm -

Tech Data


Quick service and excellent product.

April 15, 2021

SCAT Tubing - As always, ACS delivers promptly to my doorstep!

March 24, 2021

What on earth is there to review? It is a two foot length of tubing shipped as I ordered it.

Bill S
February 15, 2021

It work perfectly

Michael D
January 14, 2021

It works well for the diesel heater on my boat.

December 22, 2020

using it for an exhaust extension for my generator and it seems to work great. Well see how long it lasts...

Samuel H
December 21, 2020

I give this product five stars for form fit and function. The coiled wire that gives the tube its structure is embedded in the wall of the material, not just free-floating in the ID of the tube. Great product so far.

Darren G
December 16, 2020

got it the next day, thanks.

Douglas L
September 24, 2020

I have not installed the ducting as yet. The ducting looks like a perfect replacement for the worn original.

Paul G
September 17, 2020

Excellent fit good service

Clay C
September 7, 2020


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: I need to order part number 05-29906 SCAT ducting. Do I buy 4 units if I want 4 feet?

Yes, this is priced and sold by the foot, so quantity 4 would order 4 feet.

Q: Does the PN 05-29908 with ID 2 mean it has 2 inches of diameter? Thanks!

Correct, that part number has a 2 inch internal diameter.

Q: Is there a shelf life for Scat and Sceet?

It is a 20 year shelf life for both Scat and Sceet.

Q: What is the O.D. if the I.D. is 3 inches?

3" plus twice the wall thickness 0.098, around 3.20"

Q: Is the length of the tubing the installed length?

We get them in 13 foot lengths but we sell it per foot. It is cut to desired lengths. Inner wire can be trimmed for final installation, if required.

Q: What is the O.D. of the 1-1/2 I.D. Duct and the High Temp Clamps required?

The OD is just over 1-1/2, the wall is thin. We recommend a QS200-20 clamp.

Q: What is the difference between Scat and Sceet? I need duct for high temp heat exhanger on a vehicle.

SCAT - SCAT type ducting has the same type construction as CAT except with red silicone rubber impregnation. For use in conducting extremely cold or hot air with temperatures from -65° to over 550°F. Not recommended for negative pressure applications.

SCEET - SCEET type ducting has two plies of silicone rubber-impregnated fiberglass, similar to SCAT except wire between plies. Ideal for use in conducting extremely cold or hot air at temperatures from -80° to over 550°F, and for conveying fumes. Not recommended for handling liquids or highly abrasive materials, or for negative pressure applications.

Q: Do you sell, or offer any recommendations, scat or sceet crushed down to a flat oval as found in many Cessna Skyhawk cabin heat ducting?

No, we do not offer the ducting pre-crushed. When we ship it is round.

Q: Do I have to remove clear plastic? - I use it as an exhaust extension for my generator.

You would remove the clear plastic, it is on there for shipping.

Q: What is the longest length the MFG makes this product in?

13 foot is full length.

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