SKU: 46936735714

440mm 5" Straight Twinwall

Sale price$42.47 Regular price$47.19
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

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Description

440mm 5" Straight TwinwallInner Diameter 130mm, external diameter 190mm. (note: effective length of the 500mm section when pushed together is 440mm) Our superior stainless steel insulated twinwall flue system for use with solid fuel appliances. DWX 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

Inner Diameter 130mm, external diameter 190mm.

(note: effective length of the 500mm section when pushed together is 440mm)

Our superior stainless steel insulated twinwall flue system for use with solid fuel appliances. DWX 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: 46936735714

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4.8 ★★★★★
Based on 25 reviews
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Verified Purchase
Mari
San Leandro, US
★★★★★ 3
Just okay
This didn’t last a day. Not for a large dog. Just medium size or small dog.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
D
Verified Purchase
Diane
Phoenix, US
★★★★★ 5
Good size
Easy for the dog to grab one of the tabs. She likes playing with it outside.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
C
Verified Purchase
Cliffton Gabriel
San Leandro, US
★★★★★ 5
My boy love it
My dog's favorite toy. It's really the only thing that he will chase after. I keep buying a new one every year.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
K
Verified Purchase
Kim
Carnegie, US
★★★★★ 5
Comfortable and fits great
Size: 9, Color: Olive
Comfortable fits great.
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Reviewed in the United States on December 11, 2025
M
Verified Purchase
Meg_B
Birmingham, US
★★★★★ 5
Nice quality! BF approved.
Size: 9, Color: Olive
I got these for my boyfriend and he loves them. The color green is really nice and the quality is really good. I would recommend doing a waterproof/weather treatment to them if you plan to wear them outside. His got water marks on them already and I didn't treat them. Important note: If you have narrow feet these will work great, but if you have wide feet it might be an issue. They are true to size.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 5, 2026

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