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• Thermal expansion absorbed in each element
Cuttable / adjustable wall support bracket for 4" twinwall flue
BLACK TWINWALL
for maximum heat retention and are extremely robust
Storm Collar 4" Twinwall Black 5" twinwall • Thermal expansion absorbed inInner Diameter 100mm, external diameter 160mm. 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
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