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3" x 4" - 7.5" NFP75 Telescoping Wall Sleeve
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$16.10 each
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Product Highlights
–
4" - 7.5" Length
3" Width
Description
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RectorSeal 83017 NFP75 Telescoping Wall Sleeve (3" x 4" - 7.5")
A telescoping wall sleeve used to create a sealed, cleaner wall penetration for ductless mini-split line sets, drain tubing, and related cabling where a wall sleeve is needed.
Key Features:
Compatibility & Applications:
Installation & Operation Notes:
Maintenance & Troubleshooting:
User Reviews & Q&A Summary:
A telescoping wall sleeve used to create a sealed, cleaner wall penetration for ductless mini-split line sets, drain tubing, and related cabling where a wall sleeve is needed.
Key Features:
- Telescoping wall sleeve used to provide a seal when penetrating walls
- Telescoping length: 4" to 7.5"
- Width: 3"
- RectorSeal product listing describes it for mini-split installation and lists ID: 3" and OD: 2-7/8"
Compatibility & Applications:
- Intended for wall penetrations in ductless mini-split installations
- General application: sealing/protecting a wall penetration for routing piping/cables
- Must only be used where the manufacturer specifies this exact part number: 83017 (NFP75)
Installation & Operation Notes:
- Installation should be performed by a qualified HVAC installer/technician
- Use the manufacturer's product documentation and the mini-split installation instructions for proper wall-penetration practices (the sources provide the intended use and basic dimensions, but not a full step-by-step installation procedure)
- Ensure the sleeve is adjusted to the wall thickness and installed so it seals properly at the penetration
Maintenance & Troubleshooting:
- The sources position this as an installation accessory rather than a serviceable/adjustable component after install
- If you still have air/water intrusion after installation, user feedback suggests the seal may depend on how the ends are finished at the interior/exterior wall surfaces (see review themes below)
User Reviews & Q&A Summary:
- Reviews are strongly positive overall and commonly describe it as a good solution for mini-split line-set wall penetrations, helping create a cleaner and more weather-protected pass-through.
- A recurring improvement request: multiple reviewers wish it included a flange/"bell" on both ends (interior and exterior) to help it hold position and seal better on both sides of the wall.
- One negative review notes a description/size expectation mismatch, stating it is "not a 3-inch sleeve" in their view (reinforcing the importance of confirming the manufacturer's stated ID/OD and the specific application before ordering).
Specs
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| Length (Inches): | 4" - 7.5" |
|---|---|
| Product Type: | Wall Sleeve |
| Width (Inches): | 3" |
| Features: | Telescoping |
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Product Reviews
4.84 out of 19 reviews
95% would recommend this product
5 star
89%
4 star
5%
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5%
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Most Liked Positive Review
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Nice product, but...
Easy to install, adapts well to both 4" and 6" walls.
But... where is the 2nd flange? To install this so it holds itself in place I really need a second flange, i.e. a flange for both sides of the wall. There should be a 2nd flange supplied, or made available as an option. As is, I had to buy another sleeve just to get a flange.
VS
Most Liked Negative Review
Product is fine. Description is misleading.
This is NOT a 3-inch sleeve. It is a 2.5" sleeve. The description is wrong.
Showing 1-10 of 19 reviews
3" x 5" - 7" NFP75 Telescoping Wall
I recently purchased the 3" x 5" - 7" NFP75 Telescoping Wall Sleeve and I am extremely satisfied with its quality and performance. The telescoping feature made installation a breeze, and the durable construction gives me confidence that it will hold up well over time. I highly recommend this product to anyone in need of a reliable wall sleeve for their application.
RJU
North Carolina
2 years ago
Verified Buyer
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perfect link for our mni split
needed some type of cover for the lines between the compressor and the outside wall access. This item was the ticket. works great. created a weather proof line cover. AAA+++
SL
Southern OR
3 years ago
Verified Buyer
Was this review helpful to you?
Product is fine. Description is misleading.
This is NOT a 3-inch sleeve. It is a 2.5" sleeve. The description is wrong.
Starion
Kansas City, MO
3 years ago
Verified Buyer
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yes
worked great just what i needed to install mini split
brit
pa
3 years ago
Verified Buyer
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I would buy this product again if needed.
Installed to go with Rectorseal Fortress line set covers for a minisplit install. It is adjustable tpo fit the wall. Since it is adjustable and you take it apart, would like to see a flange on each end to make a better seal to both interior and exterior walls.
Mac
Denver, CO
3 years ago
Verified Buyer
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Pole barn mini split
This product worked perfectly for my application. I installed a mini split through a wall on the pole barn and I used the sleeve to protect the line set from the metal wall.
RobbieMac
Kentucky
4 years ago
Verified Buyer
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I would buy this product again.
Great product for installation mini split systems.
Peter C
East Stroudsburg, PA
4 years ago
Verified Buyer
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great product
Just what I needed
betty
CA
4 years ago
Verified Buyer
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Yes makes a clean job
It would be better if both sides had a bell
Danielle
Bordentown
6 years ago
Verified Buyer
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worked well
will work even better if a cover on the outside end is provided.
z
MA
6 years ago
Verified Buyer
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