Replacement Part Number: WS25025A VT2525 2-1/2" Exhaust Port Wet/Dry Vacs Vacuum Muffler Diffuser Compatible with Craftsman Shop Vacuums: 6000RV, 1000RV, 1200RV, 1250RV, 3410RV, RV2400A, 1400RV, RV2600B, 1650RV, 1620RV, 1610RV, WD5500, WD0671, WD6425, WD0970, WD7000, WD1270, WD1280, WD1450, WD1851, WD1680, WD1956 Product Includes: muffler diffuser, extension fittings and 2 foam, with standard 2-1/2 inch blowout port, compatible with most vacuums with standard 2-1/2" exhaust port MATERIAL: Made of high quality plastic with smooth surface, the foam surface designed with dense air holes to diffuse wet and dry vacuum airflow, making the exhaust less concentrated, reducing noise and blowing debris and dust Easy to install, just connect to the exhaust port of the vacuum cleaner