4″ Wall Thimble


The wall thimble gives you a port to pass horizontally through your wall for wall exit installations. One side is flat black suitable for painting, and the other side is stainless steel.  This part is made to work with traditional 2×4 or 2×6 stick framing with walls between 6″ and 11″ thick. Requires modification for exiting out the wall of structures with thinner walls like RVs.

Availability: In stock (can be backordered)

SKU: 4"Thimble Category:

Fits our 4″ insulated pipe with a 6″ outside diameter.


⚠ Warning: California Proposition 65

Use of this product can expose you to chemicals including soot, creosote, wood dust, and wood smoke containing carbon monoxide, which are known to the State of California to cause cancer, birth defects, or other reproductive harm.  For more information, visit www.P65Warnings.ca.gov.


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