Dayflex MG-V TT755 Screw Cuffs, Gray, 1.25" ID Screw cuff for connecting vacuum tools or machines to a duct hose Gray PVC provides strength and abrasion resistance Suitable for applications with temperatures up to 160 degrees F, such as residential and light commercial vacuuming Threaded end screws onto Flexaust Dayflex MG-V and MG-U hoses (sold separately)