HITACHI Listing for the futon brush only. Compatible with: ① cv-sbk200 ② cv-sp9 ③ cv-se900 ④ cv-se300 (currently in use) I have the catalogs for these vacuum cleaners. Please refer to the photos. I'm unsure which model the futon brush is for. I don't think it's ② because the instruction manual doesn't mention a futon brush. ④ is in use, and I was able to attach it. I think it might be ①, comparing the illustration in the manual with the actual brush. I think it's probably compatible with other HITACHI series models, but I'm not sure. If you have any concerns, please contact HITACHI directly. It's unused and has been stored in a bag. I've checked to see if it can be attached and powered on for this listing. ♦ Please refrain from purchasing if you are seeking perfection or are concerned about minor details.