Single Flue Caps

HY-C Single Flue Caps

Constructed of 18 ga304 Stainless Steel with a 3/4" (5/8" mesh also available) expanded stainless stell mesh.  These caps mouth to the outside of the flue tile providing greater free air-space for better draft.  If you're flue tile doesn't extend above the crown, don't worry!  Our HY-C Leg Kits attach the cap to the inside of the flue!M-FLEX Aluminum Liner Kit

HY-C Leg Kits


  • Stainless Steel
  • Adapt any single flue cap to a slide in style
  • Also available in black

Hy-C Single Flue Cap Sizing

Size Fits Outside Dimensions
9" X 9" 7 1/2" X 7 1/2" to 9 1/2" X 9 1/2"
9" X 9" 7 1/2" X 11 1/2" to 9 1/2" X 13 1/2"
9" X 9" 7 1/2" X 16 1/2" to 9 1/4" X 18 1/4"
11" X 11" 9 3/4" X 9 3/4" to 12" X 12"
13" X 13" 11 1/2" X 11 1/2" to 13 1/2" X 13 1/2"
15" X 15" 13 3/4" X 13 3/4" to 16" X 16"
18" X 18" 16 1/2" X 16 1/2" to 18" X 18"
20" X 20" 18 1/2" X 18 1/2" to 20 1/4" X 20 1/4"

Gelco Single Flue Caps

Constructed of Constructed of 18 ga304 Stainless Steel with a 3/4" (5/8" mesh also available) expanded stainless stell mesh.  These caps mouth to the outside of the flue tile providing greater free air-space for better draft.  If you're flue tile doesn't extend above the crown, don't worry!  Our Gelco Flue Grippers attach the cap to the inside of the flue!M-FLEX Aluminum Liner Kit

Gelco Flue Grippers Grippers


  • Allow for easy installation of single flue tops on flues where tiles dont protrude.  Attach legs and the cap becomes a clip in style.

Gelco Flue Cap Sizing

Size Fits Outside Dimensions
8" X 8" 6" X 6" to 8 1/2" X 8 1/2"
8" X 13" 6" X 11 1/2" to 8 1/2" X 14"
8" X 17" 6 1/4" X 16 1/2" to 8 1/2" X 19"
12" X 12" 10" X 10 1/2" to 12 1/2" X 13"
13" X 13" 11" X 11 1/2" to 13 1/2" X 14"
13" X 17" 11" X 16 1/2" to 13 1/2" X 19"
17" X 17" 16" X 16 1/2" to 18 1/2" X 19"
9" X 22" 6 1/4" X 19" to 8 1/2" X 21 1/2"
9" X 28" 6 1/4" X 25" to 8 1/2" X 27 1/4"