Filter part number: N445843, compatible with DeWalt DCV517B Type 1, DCV517M1 Type 1. Approximately 2.15 (5.4cm) X 1.85 (4.7cm) X 0.25 inches (0.6 cm), oval shape. The filter is suitable for various working environments, including woodworking, construction and car cleaning. The filter can effectively capture dust, debris and fine particles, keep the vacuum cleaner running efficiently, and reduce air pollution. The filter can be directly washed and reused, easy to maintain, and easy to install and disassemble, and can be replaced without additional tools., Manufacturer: LT Easiyl