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Exhaust Vent Flue Products
Vent stack systems for Category I Non-condensing/Negative Pressure (Type "B" Vent), Category III Positive Pressure/Non-condensing (Flanged), and Category II and IV Positive Pressure/Condensing (AL29-4C).
Click for CAT I "B" Vent Brochure
Click for CAT III, VSI Vent Brochure
Click for CAT II & IV - AL-294C Single Wall (EZ) Brochure
Click for CAT II & IV - AL29-4C Double Wall (CI plus) Brochure
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