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Selkirk 6" to 48" Pipe Length (UltimateONE)

Selkirk 6" to 48" Pipe Length (UltimateONE)

Regular price $175.12
Regular price Sale price $175.12
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Selkirk 6"/7"/8" Diameter, 6" to  48" Pipe Length

The chimney must extend at least three feet above the highest point where it passes through the roof surface and at least two feet higher than any part of the building within a horizontal distance of ten feet.

Each length includes a Latch Locking Band.

Sectional overlap of 1".

Ultimate One Chimney

UltimateONE’s inner liner and outer casing are constructed of all welded 304 stainless steel for superior strength and corrosion resistance. Engineered with a web coupler design utilizing 1" of Superwool insulation that contacts at the seam, creating a continuous column of protection.

UltimateONE allows for pipe expansion and eliminates cold air infiltration. Locked together with a latch-type locking band UltimateONE’s no tool installations are quick, solid and secure every time.
  • 6" to 8" Diameter
  • 304 Stainless Steel Inner Liner
  • 6" some products are also available in 316 Stainless Inner Liner
  • 304 Stainless Steel Outer Wall
  • All residential fuels
  • 1" Solid Pack Superwool Insulation
  • Adjustable lengths for ease of installation
  • Multiple Support Kits available
  • Smart Choice Warranty on all components

6-Inch Pipe Length:

Product Code
Part No Size (Length x Diameter)
6U1-6 0821606 6"x6"
6U1-6-316SS 0821606-316 6"x6" (Inner liner in 316 Stainless Steel)
7U1-6 0821607 6"x7"
8U1-6 0821608 6"x8"

9-Inch Pipe Length:

Product Code
Part No Size (Length x Diameter)
6U1-9 0821406 9"x6"
6U1-9-316 0821406-316 9"x6" (Inner liner in 316-Stainless Steel)
7U1-9 0821407 9"x7"
8U1-9 0821408 9"x8"


12-Inch Pipe Length:

Product Code
Part No Size (Length x Diameter)
6U1-12 0821206 12"x6"
6U1-12-316SS 0821206-316 12"x6" (Inner liner in 316-Stainless Steel)
7U1-12 0821207 12"x7"
8U1-12 0821208 12"x8"

18-Inch Pipe Length:

Product Code
Part No Size (Length x Diameter)
6U1-18 0821106 18"x6"
6U1-18-316SS 0821106-316 18"x6" (Inner liner in 316-Stainless Steel)
7U1-18 0821107 18"x7"
8U1-18 0821108 18"x8"

24-Inch Pipe Length:

Product Code
Part No Size (Length x Diameter)
6U1-24 0821006 24"x6"
6U1-24-316SS 0821006-316 24"x6" (Inner liner in 316-Stainless Steel)
7U1-24 0821007 24"x7"
8U1-24 0821008 24"x8"

36-Inch Pipe Length:

Product Code
Part No Size (Length x Diameter)
6U1-36 0820306 36"x6"
6U1-36-316SS 0820306-316 36"x6" (Inner liner in 316-Stainless Steel)
7U1-36 0820307 36"x7"
8U1-36 0820308 36"x8"

48-Inch Pipe Length:

Product Code
Part No Size (Length x Diameter)
6U1-48 0820406 48"x6"
6U1-48-316SS 0820406-316 48"x6" (Inner liner in 316-Stainless Steel)
7U1-48 0820407 48"x7"
8U1-48 0820408 48"x8"

CA Residents: 
See Prop 65 WARNING.


Lifetime Limited Warranty

Refer to the Smart Choice Warranty for full warranty details.

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      • Researched and ordered my fireplace from US FIreplace Store. Pricing was a fair value however, the customer service was EXCELLENT! I had an issue with the direct vent venting. I called US Fireplace and the correct items were sent out the next day AND Janessa stayed on top of my return authorization and sent me the permissions and documents I needed to return the incorrect item and no cost to me, including return shipping. Overall, I am a very satisfied customer and my fireplace looks and operates flawlessly. I am glad that I selected US FIreplace to source my direct vent fireplace. Thank you for the great service.


        Monteagle, TN

      • I had placed an order, through Lowe's Home Improvement, for an Electric Firebox: Revillusion RBF42. Ordered 1st part of January. Was told I would have it in 3 weeks. When checking to see is it came in, was told it was delayed to 3/15. Was then told is was delayed until 4/25. Waited until 4/27 to check on it. Was then told it was now delayed until August. This firebox was going in a new Sun Room addition. I could not get my final inspection until the Firebox was installed. I went on line and googled for this same product. US Fireplace Store web site was given to me. This was on a Saturday. I call and reached a very nice man. Explain what I was look for. He checked and told me they had 30 of them in stock. I almost fell out of my chair. I clarified with him the product I was wanting. I ask how soon could I get it. He told me it would ship today. Again, was amazed. It arrived on the following Monday. What a pleasure and a relief working with US Fireplace Store and their employees. Exceed my expectations.

        Thomas W.

        Fort Mill, SC

      • Great prices, quick delivery and fast hassle free services on the issue I encountered. I had purchased an electric fireplace unit that would not fit into the existing fireplace space. With one email I was able to get the wrong fireplace refunded and picked up at my home at no extra cost and the new one I purchased and delivered free of charge. Great company.

        John P.

        Denvers, MA

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