This Filter is a secondary pre-motor filter in some models and a exhaust filter in some models.
Fits Windtunnel 2, Futura and Spectrum Canister Vacuums
Fits Models: U8315-960, U8311-900, U8315-960, S3503, S3605, S3506, S3507, S3509, S3610, S3575, S3585, S3595, S3639, S3649, S3661
Also fits other model numbers
Genuine OEM Filter Part # 34174012. Replaces part numbers: 38769030 & 38765031
If you are unsure if this part will fit your vacuum please call us at 260 244-4696 with your model number.