From $6.50 to $6.50
Description ID PN Dash No. Price / Ft Length Buy
Ducting Vena MTD105-30504-4$6.50
Subtotal $0.00
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Sold by the foot.

Ducting used to convey air or gaseous fluids at medium temperatures and with high resistance to aging. Vena® MTD is manufactured with two fiber glass textile reinforcements and it is covered with black neoprene rubber compound and coated with non-visible steel wire. These hoses have excellent flexibility and excellent aging resistance.


These hoses are specially recommended in gas conduction at medium temperatures.
  • Electronic unit cooling.
  • Hot air conduction in printing machinery.
  • Hot air conduction in plastic bag production machinery.
  • Engine exhaust fumes extraction.
  • Welding gas suction.


This product is manufactured with two fiber glass textile reinforcements covered with neoprene rubber compound in black and coated with non-visible steel wire.


Operational temperature range from -55ºC (-67ºF) to +125ºC (257ºF). It may reach up to 150ºC (302ºF) during short periods of time.


  • The fiber glass covered with neoprene used to manufacture this product is classified as M1 according to UNE 23.727-90 Standard.
  • The fiber glass covered with neoprene doesn’t contain heavy metals and any fireproof substance.
  • EU Directive 2002/95/ECC of restriction of the use of certain hazardous substances (RoHS)
  • UNI CEI 11170-3 “Acceptance criteria for materials and components of equipment”
  • DIN 5510-2 “Fire tests for railway components”
  • Burning Behaviour of materials used in interior construction of certain categories of motor vehicles (Directive 95/28/EC) and following REGULATION No 118 of the ECONOMIC COMMISSION for EUROPE of the UNITED NATIONS
  • Regulation 118 ANNEX 6 “Horizontal burning rate”
  • Regulation 118 ANNEX 7 “Melting behaviour”
  • Regulation 118 ANNEX 8 “Vertical burning rate

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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Was exactly what I expected and easy to work with. Meant for more straight line vent plumbing but will bend some. Cutting the wire a ring down and removing it till it fits snug over tube works great. Shipped on time.

April 12, 2020

Great replacement for restoring vintage Porsche 911 engine cooling hoses.

R.l. F
January 3, 2020

Yet to be installed. Appears to be what was ordered.

Donn V
August 10, 2019

I give the quality of the product a 5 Star.... But the ordering on line is a little confusing on the site. I ordered one piece pf duct tubing, 3 in length.... But I was shipped three individual 1 lengths. When I contacted a sales rep about it they explained why and thats what I ordered. Again somewhat confusing on line when you place the order for this product. I was given the option to return the items but just decided to sleeve the pieces back together since it was just a duct for a windshield defroster vent and I didnt want to wait to finish the repair.

Edward G
August 1, 2019

excellant quality

Thane L
March 7, 2019

Exactly as ordered. Item was shipped promptly. Ordered by phone - friendly phone service. Keep up the good work!

November 24, 2018

I used this as the air tube for my Ural motorcycle. I used the 2 pipe. Pretty easy to cut I set it perpendicular to a seam in my garage floor and used my Dremel to make a straight cut on both sides. Took about 9 for each side. It looks awesome and seals better than the original pipes

May 18, 2017

very nicely designed and manufactured product.I am going to use it for air routing on my 93 cars intake , I will tell others that are interested in it where I got it.Pilot Shop rules the day!

John R
April 23, 2017

Outer white wrap gets cut easily on installation. Interior wall is good for not allowing moisture to corrode the wire wrap. Worked for vent tubing on C-182RG for rear seat passenger vents.

David S
August 21, 2020

Nice upgrade from original CAT ducting on a PA 28-181.

Jeff A
April 8, 2017


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 41 inches of 3 inch (i.d.) CEET ducting. I assume I need to order 4 'units' of tubing which would give me 48 continuous inches. Is this correct?

That is correct. It is sold per foot, in whole units. So you need quantity 4 for 48 continuous inches, then cut off 7 inches once you get it.

Q: The description table gives only one internal dimension for a duct with an oval cross-section. Is the given ID the longest dimension of the oval or the shortest dimension? For example, for CEET ducting with an oval cross-section of 3.2 by 1.7 should I order 05-30513 or 05-30507?

CEET material is round not oval. Order using the I.D. of the unit.

Q: What is the difference between MT & MTD ducting? VENA ~ ~ ~ ~ MT ~ ~ ~ ~ ~ (CAT EQUIVALENT) FLEXIBLE AIRCRAFT DUCTING VENA ~ ~ ~ ~ ~ MTD ~ ~ ~ ~~ (CEET EQUIVALENT) FLEXIBLE AIRCRAFT DUCTING

MTD /CEET is similar to MT / CAT but has wire between the plies.

Q: WHat is the weight per foot for a 3 inch CEET duct?

Approx 0.28lbs per foot.

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