Z-FLEX 3 x 25′ STAINLESS STEEL CHIMNEY LINER KIT FOR PELLET STOVES #ZFL-R325. Flex liner is 25′ Long. Inner Pipe Diameter is 3. Triple Lock® Stainless Steel PELLET STOVE Chimney Liner Kit Everything you need to get the job done right. Z-FLEX® Stainless Steel Chimney Liner Kits come complete with everything you need to quickly and easily install a professional venting system. Patented Airtight Triple Lock® Construction Ideal for use with pellet stoves. The patented Triple Lock® construction is tested and listed by U. Triple Lock® is accepted by industry as the strongest joint system available. Manufactured from special high temperature and acid 316Ti resistant stainless. Z-FLEX®s specially designed corrugations provide excellent flexibility while maintaining superior crush strength. The result is a clearly superior product offering incredible longevity. 25′ Stainless Steel Liner Chimney Flashing Rain Cap Drip less Connector 3 Tee with cover. The item “Z-FLEX PELLET STOVE 3 Inner Diameter Stainless Steel Chimney Liner Kit 25′ Long” is in sale since Monday, September 17, 2018. This item is in the category “Home & Garden\Home Improvement\Heating, Cooling & Air\Fireplaces & Stoves\Other Fireplaces & Stoves”. The seller is “usafireplace” and is located in Raymond, Maine. This item can be shipped worldwide.