The 37737 is a premium nozzle for both hard floor and carpeted surfaces. The tool is virtually silent when moving across hard floor surfaces due to the oversized wheel located just under the double pivot neck. The neck pivots first at the tool and then at the neck base to insure maximum cleaning performance. The 37737 is compatible with all canister vacuums, commercial back pack vacuums using 1-1/4 in. accessories and all major brands of central vacuum including Beam, Electrolux, Vacumaid, Cyclovac, MD, Vacuflo, Canavac, Nutone, Eureka and Imperium. To confirm the 37737 consider the nozzle end of your wand or extension tube. If it has a connection without a button and measures approximately 1-1/4 in. on the outside surface, it should be compatible. The 37737 is not compatible with several brands of European vacuums like Miele which require a 1-3/8 in. neck. The 34531 chromed steel telescopic wand features a button lock. If your hose comes equipped with a button, it will lock the wand into place, ensuring it doesn't fall off the tool. Includes full slate of attachments, including natural fill dust brush, upholstery tool with slide on, crevice tool and caddy storage tool.