Overview
Clean-out tee and 3"-to-4" increaser in a single fitting.
The DuraVent 3" PelletVent Pro black increaser adapter tee combines the service-access tee with the step up to 4" vent — the efficient choice for vertical 4" runs on tall flues or high-elevation installs.
Why buy from StoveSource: Authorized dealer · Free shipping over $250 · No sales tax (except WY) · 1-888-914-0022
Shipping & Returns
Free shipping on orders over $250 · ships in 1–3 business days.
Free shipping on orders over $250 to the continental US; a flat $19.99 shipping fee applies to orders under $250. Accessories and parts ship by parcel carrier (UPS, FedEx, or USPS), typically in 1–3 business days.
Returns. Unused, uninstalled items in original packaging can be returned within 30 days, subject to a 15% restocking fee.