Skip to content
Free shipping on qualified orders over $599! Excluding HI, AK & Canada, and products marked Special Handling.
Free shipping on qualified orders over $599! Excluding HI, AK & Canada, and products marked Special Handling.
FAQ Customer Service Contact Us
3" Wall Thimble Sleeve Extension

3" Wall Thimble Sleeve Extension

No reviews
$22.71 - $22.71
$22.71
$22.71 - $22.71
$22.71

Use to add 6” of length to Wall Pass Through and Wall Thimble for thicker walls.

SKU 300839
Brand FasNSeal
  • Product Info
  • Specs
  • Videos
  • Manuals
  • Reviews
  • Q&A

FasNSeal is for use with natural gas or propane Categories II, III and IV appliances or Canada’s Type BH Gas Vent Systems, having a maximum rated operating temperature of 480°F and a maximum positive pressure of 15″ (FasNSeal Flex 6″) water column.

FasNSeal can be used on a wide range of applications, including: high efficiency gas boilers, furnaces, booster heaters, pool heaters, water heaters, unit heaters, or tankless water heaters.

Related Categories