Yes, you can return any product within 30 days for a full refund (customer has to pay for shipping back to MD MFG). The basic hose will work but if it is a wall valve is wider than it is tall you need to buy this version of the hose https://builtinvacuum.com/retail/shopretail.php?part_no=302NM,303NM,304NM
. Also, you can buy the Low Voltage hose. It fits all the Nutone inlet styles and allows you to turn the suction on and off on the handle of the hose! Very convenient. https://builtinvacuum.com/hoses/lowvoltagehoses.html
. Oh, we might as well also let you know that you can buy any electric (Stealth, EdgeLift kits for example) or air-driven TurboCat attachment kit and the hoses will fit any Nutone inlet and clean extremely well because they groom the carpet with rotating brushes. Whew, and you just asked a simple question!