The 4" Draft Blocker Kit by WAL-RICH CORPORATION is an essential tool for improving energy efficiency in HVAC systems. This kit includes all necessary components for easy installation, effectively sealing off drafts in 4-inch ducts. Made from high-quality, durable materials, it ensures long-lasting performance. The design is compliant with industry standards, making it suitable for both residential and commercial applications. By reducing air leakage, this draft blocker kit helps maintain optimal temperature control, ultimately lowering energy costs.
