Prevents rain water from running down into your 3" stainless steel venting
Designed for use where cool flue gases are vented under pressure
Rated AL29-4C and is approved for Category I (vertical only), II, III & IV applications
2SVSRCF04 Z-Vent Rain Cap Rain Cap Vertical Rain Cap Termination. Cap has Built it Storm Collar. Available in 3" Through 24" Diameters. Z-Vent Special Gas Vent for Category Il, Il, IV Heating Equipment Is Designed for Use with Boilers, High Efficiency Furnaces, Pool Heaters, Unit Heaters and Tankless Water Heaters. Z-Vent is Manufactured Using AL29-4C, Advanced Ferritic Stainless Steel with Unmatched Corrosion Resistance, for Use with Condensing Furnaces and Boilers.