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【Premium 304 Stainless Steel Construction】 Made of 1.5mm thickened 304 stainless steel with a high-temperature spray‑plastic coating, this wall thimble offers exceptional corrosion resistance, rust prevention, and long‑term durability. The robust build keeps the outer wall cool while ensuring smooth, steady exhaust airflow for optimal draft performance
【Designed for Horizontal Direct Venting】 This pellet stove wall thimble is engineered exclusively for horizontal exhaust venting through exterior walls. Compatible with indoor gas tankless water heaters, pellet stoves, and small gas furnaces. Please note: this wall thimble is NOT for vertical chimney applications
【Precise Fit for Pipes Under 3"】 Featuring a 3.15" inner diameter, this vent wall sleeve is compatible with exhaust vent pipes smaller than 3 inches. Ideal for indoor gas tankless water heaters in home heating and bathroom installations
【Adjustable Length from 3.94" to 7.48"】 The retractable telescoping design adapts to various wall thicknesses without cutting or modification. Perfect for both new construction and renovation projects, saving installation time and effort
【Complete Kit & Professional Support】 Includes 8 stainless steel screws for secure mounting. Backed by dedicated after‑sales customer service for any installation or usage questions – your satisfaction is our priority
