Internet #100396954

Model # INSLV8

Store SKU #363949

Store SO SKU #1000683403

0050206023310

8 in. Dia R-6 Ductwork Insulation Sleeve

  • R-6 insulation
  • Reduces condensation, absorbs noise and improves air temperature
  • For use on new and existing ductwork
$ 11 50
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Frequently Bought Together

Frequently Bought Together

Product Overview

  • R-6 insulation
  • Reduces condensation, absorbs noise and improves air temperature
  • For use on new and existing ductwork
Insulate your new or existing 8 in. duct pipe with this Master Flow 8 in. Dia Fiberglass Insulation Ductwork Sleeve. Enjoy consistent air temperature and reduced system condensation and noise. On new pipe installation - simply slide the sleeve over the 8 in. duct pipe as it is being installed. For existing duct pipe up to 8 in. in diameter - cut the jacket length wise (insulation is pre-cut) and wrap around the pipe.
  • Insulates new or existing ductwork to help maintain consistent air temperature in a ventilation system
  • Insulates duct pipe up to 8 in. in diameter and up to 5 ft. in length
  • R-6 value for effective insulation of your duct system
  • Reduces mold-causing condensation and absorbs draft and duct system noise

Product Overview

  • R-6 insulation
  • Reduces condensation, absorbs noise and improves air temperature
  • For use on new and existing ductwork
Model #: INSLV8
Sku #: 363949
Internet #: 100396954

Insulate your new or existing 8 in. duct pipe with this Master Flow 8 in. Dia Fiberglass Insulation Ductwork Sleeve. Enjoy consistent air temperature and reduced system condensation and noise. On new pipe installation - simply slide the sleeve over the 8 in. duct pipe as it is being installed. For existing duct pipe up to 8 in. in diameter - cut the jacket length wise (insulation is pre-cut) and wrap around the pipe.

  • Insulates new or existing ductwork to help maintain consistent air temperature in a ventilation system
  • Insulates duct pipe up to 8 in. in diameter and up to 5 ft. in length
  • R-6 value for effective insulation of your duct system
  • Reduces mold-causing condensation and absorbs draft and duct system noise

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

Key Features

Product Overview
Key Features
  • R-6 insulation
  • Reduces condensation, absorbs noise and improves air temperature
  • For use on new and existing ductwork
Insulate your new or existing 8 in. duct pipe with this Master Flow 8 in. Dia Fiberglass Insulation Ductwork Sleeve. Enjoy consistent air temperature and reduced system condensation and noise. On new pipe installation - simply slide the sleeve over the 8 in. duct pipe as it is being installed. For existing duct pipe up to 8 in. in diameter - cut the jacket length wise (insulation is pre-cut) and wrap around the pipe.
  • Insulates new or existing ductwork to help maintain consistent air temperature in a ventilation system
  • Insulates duct pipe up to 8 in. in diameter and up to 5 ft. in length
  • R-6 value for effective insulation of your duct system
  • Reduces mold-causing condensation and absorbs draft and duct system noise

Product Overview

  • R-6 insulation
  • Reduces condensation, absorbs noise and improves air temperature
  • For use on new and existing ductwork
Model #: INSLV8
Sku #: 363949
Internet #: 100396954

Insulate your new or existing 8 in. duct pipe with this Master Flow 8 in. Dia Fiberglass Insulation Ductwork Sleeve. Enjoy consistent air temperature and reduced system condensation and noise. On new pipe installation - simply slide the sleeve over the 8 in. duct pipe as it is being installed. For existing duct pipe up to 8 in. in diameter - cut the jacket length wise (insulation is pre-cut) and wrap around the pipe.

  • Insulates new or existing ductwork to help maintain consistent air temperature in a ventilation system
  • Insulates duct pipe up to 8 in. in diameter and up to 5 ft. in length
  • R-6 value for effective insulation of your duct system
  • Reduces mold-causing condensation and absorbs draft and duct system noise

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

Specifications

Dimensions

Product Depth (in.)
60
Product Height (in.)
12
Product Width (in.)
12

Details

Insulation R-Value
6
Insulator material
Other
Returnable
90-Day

Specifications

Dimensions

Product Depth (in.)
60
Product Height (in.)
12
Product Width (in.)
12

Details

Insulation R-Value
6
Insulator material
Other
Returnable
90-Day

Questions & Answers

Is a "cap" available and will this cover elbows? Is a "cap" available to place over the duct end ...

Is a "cap" available and will this cover elbows? Is a "cap" available to place over the duct end to ease installation and prevent snagging of the fiberglass? Can this product slide over elbows? If not, what is recommended? Thanks in advance. Brian
Asked by: Brian
No. this is insulation only.
Answered by: adtruck
Date published: 2019-11-07

Are shining material foil or fiberglass?

Are shining material foil or fiberglass?
Asked by: SY
It's fiberglass surrounded by a foil sleeve.
Answered by: Mike
Date published: 2018-05-24

Can you use this on a portable room a/c unit plastic vent duct?

Asked by: TaiTu
That is exactly what I used this for.
Answered by: BradKC
Date published: 2019-07-30

If you can buy 25ft of insulated flexible ducting for $26....why wouldn't a person just buy that ...

If you can buy 25ft of insulated flexible ducting for $26....why wouldn't a person just buy that and remove the inner flex duct and use the insulating sleeve it comes with? I mean seriously...5 feet for 20 bucks?! Maybe I'm missing something?
Asked by: Steve
Seems like a lot of extra work if you're doing a long run. Plus, removing the flexible duct may not be as easy as you think because it's corrugated. Lastly, this insulation has a higher R-value and comes in a wider variety of sizes.
Answered by: Mike
Date published: 2018-05-24
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Customer Reviews

Master Flow 8 in. Dia R-6 Ductwork Insulation Sleeve is rated 4.2 out of 5 by 101.
Rated 4 out of 5 by from This is a great product I used 15 rolls of this duct insulation - the 6 and 8 inch - to repair existing ductwork in a very confined crawl space in my 40 YO house. That meant the insulation wrap had to be cut. Here, it is important to have very sharp scissors to prevent snagging and tearing. Other than that, it was very easy even in the limited work space. After cutting the wrap lengthwise, the insulation was laid over the duct, then the wrap was laid over and pulled onto place. Using flexduct tape, put 3 strips - one at each end and one in the middle to make a temporary hold Then ran tape the length of the seam. Simple as that. Installation on new ducts would be even easier since no cutting would be required. The insulation quality is very good and the outer wrap is strong yet very flexible. I highly recommend this for anyone to use and the price was very reasonable. This was my first try at doing the ducts and, for just a diy-er, it went very well.
Date published: 2009-05-06
Rated 5 out of 5 by from Worked well to cover vent pipe in basement I had to cut it to wrap the pipe and then taped it wit... Worked well to cover vent pipe in basement I had to cut it to wrap the pipe and then taped it with aluminum heat resistant tape.
Date published: 2019-09-21
Rated 5 out of 5 by from Could tell a difference in the temperature of my rooms... Could tell a difference in the temperature of my rooms after installing.
Date published: 2019-10-30
Rated 5 out of 5 by from Easy, convenient retrofit for uninsulated crawl space ductwork Easy, convenient retrofit for uninsulated crawl space ductwork
Date published: 2019-10-15
Rated 4 out of 5 by from Rating provided by a verified purchaser... Rating provided by a verified purchaser
Date published: 2019-10-31
Rated 5 out of 5 by from Easy to use and keeps the cold air out Easy to use and keeps the cold air out
Date published: 2019-11-05
Rated 2 out of 5 by from Don't do this alone This product comprises a 6' long tube of aluminum foil, surrounding a sheet of fiberglass wool. To fit to new ducts, you pull the tube over the duct and tape into place prior to installation. I was in the position of having to fit to existing ducts. Instructions tell you to first secure the foil to the fiberglass with tape, then split the aluminum cover lengthwise; the fiberglass is already split so you're forming a two-layered sheet. Wrap this sheet around the duct and tape it closed. In practice, I found this to be immensely difficult and frustrating. Does adhesive tape stick to fiberglass wool? Not hardly, so the foil and fiberglass keep coming apart and going separate ways. Like in 99% of houses, my duct-work is in awkward, hard to get at places, so I was at screaming point in no time at all. My options; 1. wait until I have at least one other pair of hands to help, 2.disassemble the ducts and treat as a new installation, keeping the foil wrapper intact, or 3. return the three unused packets for refund. I'll probably go with #1, but I wish I'd known that fitting to existing ducts is NOT a one-person job before buying the product.
Date published: 2011-12-07
Rated 2 out of 5 by from Much Needed, BUT They Will Short You! Master Flow is not consistent with product, they are using two different fiberglass mats, a thicker firmer yellow mat and a thinner less firm pink mat insulation! Secondly, the outer aluminumized shell is consistently shorter then the fiberglass mat, which is stupid because you want to overlap outer shell to tape ends together! Thirdly, as the description states "up to five feet" because it is not five feet, they short you up to a half a foot! If you wanted to put up three units, end to end, to reach 15 feet, you will never get there, and need to buy a forth unit!
Date published: 2014-12-08
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