We needed to replace the carpet power head for out Beam central vac. I spent two days talking to them and they could not decide which power head would plug into our hose. I went on Amazon and found a power head and called the Allegro store and talked to Victoria. She asked some question and said teh Wessel-Werk EBK would be the best unit for us. Ms Victoria was very knowledgeable and should give Beam some O J T about their products. My wife is very happy with the new power head and the price was half the price from Beam if they knew what they are selling. Thank you Victoria you did a good job!!