Selkirk - 6" to 8" Round Top Termination (UltimateONE)

SelkirkSKU: 6U1-CT

Sale price$144.76

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Size: 6-Inch
⛟ Estimated Delivery Date: Between and to all states excl. Alaska & Hawaii.

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In the realm of chimney systems, Selkirk introduces the 6" to 8" Round Top Termination, a pinnacle of innovation and reliability. A vital component of the chimney system roof assembly, the Round Top boasts a thoughtfully designed dome, expertly fending off rain and leaves, coupled with a lower skirt engineered to deflect wind and facilitate proper chimney draft.

Engineered for simplicity, the Round Top flaunts a unique three-legged structure that effortlessly slides down over the chimney's exterior. A cinch band is strategically placed over the legs and tightened, ensuring a secure and steadfast hold. Cleaning your chimney becomes a breeze with a cap removal process that's as efficient as it is effective. Crafted entirely from stainless steel, this termination exemplifies longevity and resilience.

Notably, the Round Top's inner stub is available in 316 stainless steel for the 6" diameter, offering a tailored solution for your specific needs. But the excellence doesn't stop there; enter the UltimateONE Chimney, an integration of meticulous design and cutting-edge technology.

UltimateONE stands out with an inner liner and outer casing crafted from all-welded 304 stainless steel, providing unparalleled strength and corrosion resistance. The web coupler design, featuring 1" of Superwool insulation, creates a seamless shield against the elements, ensuring continuous protection. Enabling pipe expansion and eliminating cold air infiltration, UltimateONE is not just a chimney, but a testament to innovation.

Locked together with a latch-type locking band, UltimateONE ensures tool-free installations that are not only swift but also solid and secure, each and every time. The 6" to 8" diameter range, along with a 304 stainless steel inner liner and outer wall, caters to diverse residential fuel needs. The inclusion of 1" Solid Pack Superwool Insulation further enhances its efficiency, with adjustable lengths for effortless installation and multiple support kits available to adapt to your specific requirements.

Embrace the assurance of quality with Selkirk's Smart Choice Warranty covering all components. Elevate your chimney experience with the UltimateONE series, where durability meets innovation.


  • Superior strength and corrosion resistance
  • Effortless cap removal for cleaning
  • Seamless protection against the elements
  • Quick, tool-free installations
  • Eliminates cold air infiltration
  • Tailored inner stub options
  • Smart Choice Warranty for added peace of mind


  • Three-legged design for stability
  • Dome to exclude rain and leaves
  • Lower skirt to deflect wind
  • All-welded 304 stainless steel construction
  • 1" Solid Pack Superwool Insulation
  • Adjustable lengths for easy installation
  • Latch-type locking band for secure fit


  • Diameter: 6" to 8"
  • Inner Liner: 304 Stainless Steel (316 Stainless Steel for 6" diameter)
  • Outer Wall: 304 Stainless Steel
  • Suitable for all residential fuels
  • Smart Choice Warranty on all components
Product Code
Part No Size
6U1-CT 0827606 6-Inch
6U1-CT-316SS 0827606-316 6-Inch (Inner liner in 316 Stainless Steel)
7U1-CT 0827607 7-Inch
8U1-CT 0827608 8-Inch

Warranty: Lifetime Limited Warranty

Refer to the Smart Choice Warranty for full warranty details.


About The Manufacturer:


Selkirk products set themselves apart from the competition with their proven quality, safety, ease of installation, and lasting performance.  Selkirk is one of the most trusted brands in the industry because we stand behind everything we do.  From assisting with product selection, providing education and installation assistance, to our industry-leading warranties, we ensure your success every step of the way.

      Order Confirmation:

      Upon placing your order, you will promptly receive an email confirmation. Subsequently, we will conduct a thorough inventory check to ensure all items are in stock and available for immediate shipment. If your order aligns with the advertised delivery timeframe, we will promptly process it for shipment to our warehouse. In cases where the expected delivery time extends beyond the advertised timeframe, we will reach out to you via email and/or phone for confirmation.

      Order Shipment:

      Within one business day of your item being shipped, you will receive an email confirmation containing a tracking number. If you do not receive tracking information within six business days of placing your order, please don't hesitate to get in touch with us for assistance.

      Estimated Time of Arrival:

      Our typical delivery timeframe ranges from 2 to 10 business days. Custom-made products generally require 3 to 5 weeks for delivery. If the expected delivery date for your order would fall outside of the advertised 2-10 business day time frame, our customer service team will contact you to ensure your agreement with the revised timeline.

      Covered Areas:

      Please note that all estimated delivery dates and shipping costs advertised on our website apply exclusively to the Contiguous United States. For inquiries regarding shipping to Hawaii or Alaska, kindly reach out to our customer service team. While we do not offer direct shipping to Canada, we are more than willing to ship your order to the freight carrier of your choice.


      It is very important that you inspect the packaging of your items when they arrive and check if you received all boxes listed on the delivery receipt. If you notice any damage or shortage of packages, you must make note of it on the bill of lading, take pictures, and refuse delivery. Your note should say "refused due to damage". You must also take photos of all sides of the box and send them to us within 2 days. If there are no damages visible before opening the box, you must note "subject to further inspection may contain concealed damage". If you notice any damage after receiving the delivery, do not throw the box away, and contact us with the photos. After we receive information from you about the refused delivery or concealed damage, we immediately initiate a claim with the shipping company or with the manufacturer. After the claim is fully processed, we ship all replacements at absolutely no cost to you.

      Cancellations & Refunds:

      We offer free order cancellations before the shipping label or Bill of Lading is generated, or prior to the commencement of production for custom orders. Please note that custom-made items are not eligible for refunds once production has begun. To be eligible for a return, the item must be unused and in its original condition, with all packaging intact and in perfect condition. Orders delivered outside of the United States are not eligible for refunds. If your order arrives damaged, please refer to the "Damages" section. Our refund policy extends for 30 days. If 30 days have elapsed since your purchase, regrettably, we cannot process a refund. Prior to returning an item, please contact us to discuss shipping details. All refunds will be credited to the original credit card or PayPal account used for the purchase, within two days of receiving the returned items at our warehouse.

      Please contact for any questions regarding shipping time.

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