Introducing the 2.5" to 1.25" Hose Reducer by POWERTEC. This adapter serves as a conversion unit for your dust collection accessories and attachments. Designed for professionals and DIY enthusiast alike, now you can use your 2.5 inch ID dust collection hose with all your 1-1/4" ID wet/dry vacuum tools and accessories It's perfect for any workshop that's looking to increase workflow by eliminating the need for extra tools. Most standard 2-1/4" OD hose connectors will fit inside the 2-7/32" ID. //Premium Build -The POWERTEC Reducer is made out of high quality ABS plastic. This lightweight material is commonly known for it's superb durability and abrasion resistance - both qualities perfect for any woodworking environment and/or workshop that depends on high performance dust extraction.