SKU: 989384876

Adjustable 350-530mm 6" Twinwall Black

Sale price$95.49 Regular price$106.10
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 30 - Aug 4

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Description

Adjustable 350-530mm 6" Twinwall BlackDINAK DW 255 Inner Diameter 150mm, external diameter 210mm. Our superior stainless steel insulated twinwall flue system for use with solid fuel appliances. Dinak has the strongest interlocking joint system on the market today, making it popular with top installers who need to rely on a quality system every time. Select your required parts and add to your cart, or alternatively Use our FREE TWINWALL QUOTATION SERVICE! and we will select all of the

DINAK DW 255

Inner Diameter 150mm, external diameter 210mm.

Our superior stainless steel insulated twinwall flue system for use with solid fuel appliances. Dinak has the strongest interlocking joint system on the market today, making it popular with top installers who need to rely on a quality system every time.


Select your required parts and add to your cart, or alternatively Use our  FREE TWINWALL QUOTATION SERVICE! and we will select all of the required parts to suit your system.



Note: a locking band is required at each joint in the twinwall system.

Main Features

- Simple, easy push-fit system

- HETAS Approved
- High mechanical resistance to vertical and horizontal forces
- 60mm clearance to combustibles
- No thermal bridge, insulation continuity throughout the system
-Thermal expansion absorbed in each element
- High working temperature: 600 °C under continuous operation

Applications

- Solid fuel appliances, wood and multifuel stoves
- Biomass boilers
-Domestic heating and hot water systems
- Hot air generators
- Bakery ovens
- Ventilation and smoke extraction
- Industrial / commercial heating

Materials

Inner wall: 316L Stainless Steel

Outer wall: 304 Stainless Steel

Insulation: 30mm Rockwool

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 989384876

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4.5 ★★★★★
Based on 26 reviews
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Product Reviews
J
Verified Purchase
Janice
Grantham, US
★★★★★ 4
Tough enough to take rough play.
Color: Multicolor A, Size: 2.0"(Small)-6 Pack
They are smaller than I thought. That’s on me because I didn’t see the size. My dog loves them anyway and they are sturdy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 4, 2026
J
Verified Purchase
Jimmy D, Seattle
Los Angeles, US
★★★★★ 5
Lucy The Dog Approved!
It's really not for me to say, with exception of the orange-blue color, which is ideal for still life. But the best part is how unglued the Lucy Dog gets at the sound of the squeaky toy knowing the hall leading to my apartment is instantly converted into a Dog Run. And she gets equally excited at the sight of any grassy area when on bike rides. So a feature that is truly the dog's bollocks is it's the perfect size for both Lucy's petite mouth and the all important emergency spare that fits securely under my bike saddle. In short, sublime perfection in Lucy The Dog's expert opinion.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 17, 2025
D
Verified Purchase
DRmom
Houston, US
★★★★★ 5
Great fetch toy
Color: Multicolor B, Size: 2.5"(Medium)-6 Pack
My German Shepherd LOVES these. The size, squeak, & quality is the Perfect fetch ball. I use a blue ball throwing launcher and they work Great together. Will be buying more of these
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
J
Verified Purchase
Joanie Kilpatrick
Grantham, US
★★★★★ 5
If you have dogs that like to play fetch, these are a must have!
Color: Orange - Pink, Size: 2.0"(Small)-4 Pack
My pups love these sp much, they won't play with any balls other than these. Not sure if it's the small size, or the fact that they squeek, but they def were a hit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
M
Verified Purchase
MamaG
Pawtucket, US
★★★★★ 5
Fun balls for a small doggie
Our little Cockapoo loves these balls. When she can’t entice us to play, she has figured out how to bounce and chase a ball by herself - very cute!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026

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