For COMPATIBILITY, most vacuum cleaner accessories in India either have a 32mm or 35mm inner diameter. The VMTC range compatible with Karchre is 35mm and the range compatible with HUBERTT is 32mm. If one is unsure of the size compatibility or the model is not mentioned in the product description page, VMTC has come up with a universal range which is compatible to machines with a diameter ranging between 30mm to 38mm, considering it has a round handle adapter. If you’re still unable to find your model number then we suggest you contact us by clicking on contact seller button or email us at vmtc.india@gmail.com or connect with us over a phone call at 9999232200. In case you have already made the purchase and the accessory is not compatible, please write to us on the above email id with your amazon invoice details and model no. of your vacuum cleaner & we will ship you the transforming adapter Kit at no cost, making 32mm accessories compatible with 35mm and vice-versa. VMTC has the largest range of vacuum cleaner accessories in India, please check our VMTC store for your right match.