Selkirk 3 in. D Galvanized Steel Wall Thimble

The Selkirk 3 in wall thimble is designed for safe and efficient venting of gas appliances through walls in both single and multi-story buildings. This adjustable wall thimble fits wall thicknesses from 4-1/8 in to 7 in, making it versatile for a range of installation needs. As a round Type B gas vent accessory, it ensures the required 1 in air space to combustibles when installed according to manufacturer specifications, helping to maintain safety standards in your home or business. The Selkirk wall thimble is tested and listed per UL-441 for use as a Type B and B-W gas vent, providing peace of mind with its compliance to industry standards. Its durable plastic construction and adjustable features make it easy to install and reliable for long-term use. Ideal for anyone needing a 3 inch through the wall thimble for gas venting, this product is a trusted choice for HVAC professionals and DIY installers alike. Choose the Selkirk 3 in wall thimble for a dependable solution to your venting requirements.