The three way hose splitter enables the use of 3 tools with one vacuum. It is designed for use with Dustless Technologies Pro Series HEPA vacuums, including the Dustdroid, DustPro and DustBot series. The main port connects to a 3" hose, and the other three ports are all 2.25" diameter. Connects three 2.25". hoses to a single 3" hose. 2 caps included for unused ports. All steel construction. Connects quickly and securely. Fits all Dustless Technologies Pro Series industrial vacuums including: Model #H0012 Dustdroid 130, Model #H0030 Dustdroid 300,Model #H0060 Dustdroid 600,Model #H0032 DustPro 300,Model #H0062 DustPro 600,Model #H0031 DustBot 300,Model #H0061 DustBot 600. Pro Series 3 way splitter 3" to 2.25", 2.25" 2.25". Dimensions: 10"L x 4"H x 10"W. Assembled dimensions: 15"D x 6"H x 12"W.