Z-Flex Z-Vent 3" Top Support / Storm Collar (2SVSLSF03).

The Z-Flex Z-Vent 3" top support / storm collar is used for vertical (through the roof) venting to make a weather seal with the adjustable roof or flat roof flashing. Also pick up a tube of our Z-Vent Sealant 3oz Tube (2SILRRTV1O6X) to help ensure that there is a tight connection between the Top Support / Support Collar and the 3" vent pipe so that rain water does not run down the outside of the 3" vent pipe and into the flashing.

Z-Flex Z-Vent stainless steel vent pipe is ideal for the Bosch Therm 940ES / Bosch Therm 830ES / Bosch Therm 660EF / Bosch AquaStar 2700ES / Bosch AquaStar 2400ES / Bosch Evolution 500 tankless water heaters as well as the legacy Bosch Pro 715ES / Bosch Pro 635ES / Bosch AquaStar 2400E / Bosch AquaStar 250SX heaters.

Z-Flex Z-Vent is rated AL29-4C and is approved for Category I (vertical only), II, III & IV applications and is designed for use with boilers, high efficiency gas and oil heaters and water heaters where cool flue gases are vented under pressure. Z-Vent contains a built-in, fail-safe gasket and locking band connection. No sealant is required.

Orders received M-F before 2pm ET will ship the same day. Orders received after 2pm ET will ship the next business day.

GlobalTowne is an Authorized Z-Flex Distributor for all Z-Flex Z-Vent products. We have been in business since 2004 and we are A+ rated by the BBB.