The extension hose works with many models and brands. The qualifying issue is the hose end and wall inlet. Both the hose and inlet may be different, even on the same brand and model. Most all parts of a central vacuum are interchangeable and so you rarely find the same hose used for a particular brand and model. Bottom line is the Extension Hose works with inlet valves that have a hole that is 1-1/2" diameter (or a hair under), and with all hoses that fit these inlets except for hoses that have two copper pins that plug into to small holes above or below the 1-1/2" diameter hole. If your hose doesn't have these two pins then it is compatible.