Elevate your appliance connection with the Selkirk 3"/4" Appliance Adapter, designed to seamlessly link your appliance to UPP with unrivaled precision. Engineered with state-of-the-art silicone gasket technology, this adapter ensures a secure, leak-free connection, giving you peace of mind in every use. Crafted for both ease of assembly and disassembly, the laser-welded seams of the inner and outer pipes guarantee a consistently round pipe with a clean profile. The 1 ¾" overlap at joints and the silicone gasket sealing technology add an extra layer of reliability, making this adapter a trusted choice for safety-conscious users. Whether you prefer the sleek matte black finish or the classic unpainted look, Selkirk offers both options to suit your style. The Lock-Tab secure rotation allows for effortless inspection and cleaning, providing convenience without compromising safety. With approvals from UL641 and applicable portions of UL103 in the U.S.A., this adapter sets a new standard in appliance connections. Benefits: Leak-free connections with superior silicone gasket technology. Easy and secure assembly for a hassle-free experience. Effortless disassembly for thorough inspection and cleaning. Laser-welded inner and outer pipes ensure a consistently round and clean profile. Versatile 3" to 4" diameters to suit your specific appliance requirements. Available in matte black or unpainted finish for personalized aesthetics. Lock-Tab secure rotation for easy dismantling without compromising safety. Features: 1 ¾" overlap at joints for added reliability. Smooth joint connections for a sleek and professional look. 1" clearance to combustibles ensures safety in every use. 360° Lock-Tab secure rotation for convenient inspection and cleaning. Durable construction with 304 stainless steel inner and galvalume outer. Multiple pipe lengths available, ranging from 6" to 60". Complete offering of painted pipe, fittings, and components for a comprehensive solution. Specifications: Matte Black Options: 823017B (3UPP-AAB), 824017B (4UPP-AAB) Material: 304 stainless steel inner, galvalume outer Approvals: Listed to UL641 in the U.S.A., Listed to applicable portions of UL103 in the U.S.A. Product Code Part No Size 823017 3UPP-AA 3-Inch (Unpainted) 824017 4UPP-AA 4-Inch (Unpainted) 823017B 3UPP-AAB 3-Inch (Matte Black) 824017B 4UPP-AAB 4-Inch (Matte Black) Warranty: Lifetime Limited Warranty Refer to the Smart Choice Warranty for full warranty details.  Downloads: Download Product Catalog Download Ultimate Pellet Pipe Sell Sheet Download Product List Ultimate Pellet Pipe Download Ultimate Pellet Pipe Installation Instructions Download Smart Choice Warranty Information About The Manufacturer:       Selkirk products set themselves apart from the competition with their proven quality, safety, ease of installation, and lasting performance.  Selkirk is one of the most trusted brands in the industry because we stand behind everything we do.  From assisting with product selection, providing education and installation assistance, to our industry-leading warranties, we ensure your success every step of the way.