Think Crucial Replacement for Dyson DC17 Pre & Post Filters, Roller & Hose, ompatible With Part # 91123601, 91123501, 91196101 & 911645 HIGH QUALITY ROLLER BRUSH, FILTERS AND HOSE that replaces your existing vacuum's worn out parts. Get back to running your toes through clean carpet once again.! Fits all Dyson DC-17 vacuums. HEALTHIER LIFESTYLE! You shouldn't worry about if your carpet is really clean when you and your loved ones are walking on it. This new kit will let your vacuum dig deeper into your carpet, lifting away more dirt and muck than you thought possible. EASY TO INSTALL so you can get back to cleaning as soon as possible! Simply remove your old roller brush, filter and hose, then install the new ones. With a simple toolkit and a half-hour, you can restore life to your vacuum. SAVE MONEY by using a new roller brush and hose! If your vacuum isn't cleaning your carpet completely, you have to vacuum more often, at the expense of time and your electric bill! Compare to Dyson Part Nos. 911236-01, 911235-01, 911961-01, 911645. GUARANTEED SATISFACTION because of a 30 day full money bank guarantee and a trusted Think Crucial warranty. We are so confident in our products that we have no problem giving you every penny back if you're unhappy with your purchase. You won't see promises like that from big box brands!