Double Wall 18” Diameter

Ductwork

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HoodMart 18" Ductwork Double Wall Grease Duct Accessories.

Factory Built Grease Duct Systems. UL listed, requires No Welding - Single Wall & Reduced Clearance: UL1978 and Double Wall Zero Clearance: UL1978 & UL2221, Limited Lifetime Warranty.

18 inch Double wall and large diameter single wall options incorporate flanged connections and clamp bands for maximum rigidity. Innovative accessories including cutable lengths, built in access doors on offsets, and no weld hood adapters all combine to make this your best ducting option.

Ships in 15 Business Days.

* No Weld Ductwork Saves You Installation Time. Other Custom Sizes Available

Made in USA

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  1. 18" Diameter, Double Wall Zero Clearance Grease Duct, No Weld Hood Adapter Oval - Start
    • Constructed of UL 409 Stainless Steel
    • Ceramic fiber insulation between inner/outer jacket
    • 400 Series outer duct jacket and inner jacket
    • Made in USA
    • Recommended Duct Sizes Medium Duty Hood Lengths 11'-15'5"
    • Recommended Duct Sizes Heavy Duty Hood Lengths 10'-11'11"
    Orig.Price 877,45 $ Your Price 807,25 $
  2. 18" Diameter, Double Wall Zero Clearance Grease Duct, Locking Band
    • Constructed of UL 409 Stainless Steel
    • Ceramic fiber insulation between inner/outer jacket
    • 400 Series outer duct jacket and inner jacket
    • Made in USA
    • Recommended Duct Sizes Medium Duty Hood Lengths 11'-15'5"
    • Recommended Duct Sizes Heavy Duty Hood Lengths 10'-11'11"
    Orig.Price 108,67 $ Your Price 99,98 $
  3. 18" Diameter, Double Wall Zero Clearance Grease Duct, Flange Collar Adapter
    • Constructed of UL 409 Stainless Steel
    • Ceramic fiber insulation between inner/outer jacket
    • 400 Series outer duct jacket and inner jacket
    • Made in USA
    • Recommended Duct Sizes Medium Duty Hood Lengths 11'-15'5"
    • Recommended Duct Sizes Heavy Duty Hood Lengths 10'-11'11"
    Orig.Price 190,52 $ Your Price 175,28 $
  4. 18" Diameter, Double Wall Zero Clearance Grease Duct, Fan Plate Adapter - End
    • Constructed of UL 409 Stainless Steel
    • 36" x 36" square plate
    • Can be cut to size during installation
    • Ceramic fiber insulation between inner/outer jacket
    • 400 Series outer duct jacket and inner jacket
    • Made in USA
    • Recommended Duct Sizes Medium Duty Hood Lengths 11'-15'5"
    • Recommended Duct Sizes Heavy Duty Hood Lengths 10'-11'11"
    Orig.Price 982,40 $ Your Price 903,81 $
  5. 18" Diameter, Double Wall Zero Clearance Grease Duct, Anchor Plate Support
    • Constructed of UL 409 Stainless Steel
    • Made in USA
    • Use with 18" Diameter Duct
    • Recommended Duct Sizes Medium Duty Hood Lengths 11'-15'5"
    • Recommended Duct Sizes Heavy Duty Hood Lengths 10'-11'11"
    Orig.Price 469,10 $ Your Price 431,57 $
  6. 18" Diameter, Double Wall Zero Clearance Grease Duct, 18" Fixed Length
    • Constructed of UL 409 Stainless Steel
    • Made in USA
    • Use with 18" Diameter Duct
    • Recommended Duct Sizes Medium Duty Hood Lengths 11'-15'5"
    • Recommended Duct Sizes Heavy Duty Hood Lengths 10'-11'11"
    Orig.Price 508,29 $ Your Price 467,63 $
  7. 18" Diameter, Double Wall Zero Clearance Grease Duct, 18" Cut Length
    • Constructed of UL 409 Stainless Steel
    • Made in USA
    • Use with 18" Diameter Duct
    • Recommended Duct Sizes Medium Duty Hood Lengths 11'-15'5"
    • Recommended Duct Sizes Heavy Duty Hood Lengths 10'-11'11"
    Orig.Price 508,29 $ Your Price 467,63 $
  8. 18" Diameter, Double Wall Zero Clearance Grease Duct, 36" Cut Length
    • Constructed of UL 409 Stainless Steel
    • Made in USA
    • Use with 18" Diameter Duct
    • Recommended Duct Sizes Medium Duty Hood Lengths 11'-15'5"
    • Recommended Duct Sizes Heavy Duty Hood Lengths 10'-11'11"
    Orig.Price 714,41 $ Your Price 657,26 $
  9. 18" Diameter, Double Wall Zero Clearance Grease Duct, 87 Degree Elbow w/ Access Panel
    • Outer Wall Constructed of UL 304 Stainless Steel, Inner wall constructed of 400 Series Stainless
    • 87 Degree Elbow
    • Made in USA
    • Double Wall Zero Clearance
    • Access panel attached with wing nuts
    • Recommended Duct Sizes Medium Duty Hood Lengths 11'-15'5"
    • Recommended Duct Sizes Heavy Duty Hood Lengths 10'-11'11"
    Orig.Price 1.655,67 $ Your Price 1.523,22 $
  10. 18" Diameter, Double Wall Zero Clearance Grease Duct, 45 Degree Elbow w/ Access
    • Outer Wall Constructed of UL 304 Stainless Steel, Inner wall constructed of 400 Series Stainless
    • 45" Degree Elbow
    • Made in USA
    • Double Wall Zero Clearance
    • Access panel included-no tools required
    • Recommended Duct Sizes Medium Duty Hood Lengths 11'-15'5"
    • Recommended Duct Sizes Heavy Duty Hood Lengths 10'-11'11"
    Orig.Price 1.478,65 $ Your Price 1.360,36 $
  11. 18" Diameter, Double Wall Zero Clearance Grease Duct, Inline Access Door Length
    • Constructed of UL 304 Stainless Steel
    • No tools required
    • Made in USA
    • Double Wall Zero Clearance
    • Access panel attached with wing nuts
    • Recommended Duct Sizes Medium Duty Hood Lengths 11'-15'5"
    • Recommended Duct Sizes Heavy Duty Hood Lengths 10'-11'11"
    Orig.Price 1.488,62 $ Your Price 1.369,53 $
  12. 18" Diameter, Double Wall Zero Clearance Grease Duct, 36" Fixed Length
    • Outer Wall Constructed of UL 304 Stainless Steel, Inner wall constructed of 400 Series Stainless
    • 36" Fixed Length
    • Made in USA
    • Double Wall Zero Clearance
    • Recommended Duct Sizes Medium Duty Hood Lengths 11'-15'5"
    • Recommended Duct Sizes Heavy Duty Hood Lengths 10'-11'11"
    Orig.Price 714,41 $ Your Price 657,26 $
  13. 18" Diameter, Double Wall Zero Clearance Grease Duct, Light Support Band
    • Constructed of UL 304 Stainless Steel
    • Bracket to support hanging or vertical duct
    • Made in USA
    • Recommended every 15' for diameters 10"–14"
    • Recommended Duct Sizes Medium Duty Hood Lengths 11'-15'5"
    • Recommended Duct Sizes Heavy Duty Hood Lengths 10'-11'11"
    Orig.Price 121,32 $ Your Price 111,61 $
  14. Sealant for flue Gas Temp up to 600F
    • Sealant for flue Gas Temp up to 600F
    • Non-Slumping will not sag or run.
    • Made in USA
    • Designed for sealing and bonding applications.
    Orig.Price 68,00 $ Your Price 62,56 $
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