SKU: 70590321531

140mm Length 5" Twinwall

Sale price$32.29 Regular price$35.88
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 6 - Aug 11

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Description

140mm Length 5" TwinwallDINAK DW 255 Inner Diameter 130mm, external diameter 190mm. 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 130mm, external diameter 190mm.

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: 70590321531

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4.5 ★★★★★
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Jer
Lexington, US
★★★★★ 5
So comfortable
Size: 10.5-11.5 Women/9-10 Men, Color: Black
They're so soft to wear! I needed something to wear when it's hot out. These work great and they feel durable! They also clean up easy if i choose to wear them outside. I bought my daughter a pair as well. I think they fit true to the size. I am a size 7-7 1/2 and ordered 7-8.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
J
Verified Purchase
Jennifer Sanders
Pawtucket, US
★★★★★ 4
Size Up!
Size: 9-10 Women/7.5-8.5 Men, Color: Chocolate, Size: 9-10 Women/7.5-8.5 Men, Color: Chocolate
These are very comfortable! My only issue is that I'm a size 9, so I ordered the womens 9-10 and they are *almost* too small. My heel really wants to come out the back. I know the description says to size up, so you really should lol. They are also narrow, as I have wide feet! I will still wear them, just not if I have to walk too much
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 26, 2026
T
Verified Purchase
Tread On
Houston, US
★★★★★ 5
No more stubbed toes!
This is a very comfortable slip on shower sandal. The bowl design that makes it protect your toes and feet works like a champ! No more stubed toes !! They wore great to prevent that. And they have great traction in smooth wet surfaces. Even with soap on them. Comfortable fit.. I would buy this product again. Thanks
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 29, 2026
L
Verified Purchase
Lisa
Cuba, US
★★★★★ 5
Comfy
Size: 6-7 Women/4-5 Men, Color: Chocolate
Great slides. I wore them all week on a vacation to the beach. On the beach, walking tours, comfy!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
D
Verified Purchase
Dana Robinson
New York, US
★★★★★ 3
Size up
Size: 7.5-8.5 Women/6-7 Men, Color: Black
I had another pair of a different style from the same seller that shrunk when left in the sun. That one wasn't available anymore, so I bought this one in the same size, and they are too small. They are comfy shoes but not true to size
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026

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