33W18 | Lennox 101599-02, 2-Stage Pressure Switch, Set Point High 1.32" W.C.; Set Point Low 0.20" W.C. | Lennox

Lennox 33W18 Heat Exchanger (Sku: 33W18) The Lennox 33W18 is a two-stage heat exchanger designed for use with Lennox furnaces. It is made of high-quality materials and is built to last. The 33W18 is a great choice for those looking for a reliable and efficient heat exchanger. Here are some of the key features and benefits of the Lennox 33W18: * Two-stage design for improved efficiency * High-quality materials for durability * Easy to install and maintain * Backed by a 10-year warranty If you are looking for a heat exchanger that will provide years of reliable service, then the Lennox 33W18 is the perfect choice for you. Our HVAC supply store offers the best prices and fast shipping on all of our products. Shop now and save!