1 Set Of Central Vacuum Cleaner Brush Compatible With Roomba E5 / I7.Fully Compatible With Roomba E5 / I7 / E5154 / E5158 / I7154High Quality Accessories And Spare Parts Are Durable.Easy To Clean. Assemble And Use In A Minute, It Is A Pioneer In The Sale Of Spare Parts And High Quality Spare Parts. We Are Professional Since They Launched In The Market. And We Have The Entire Range Of Products Of The Highest Quality. And The Best Customer Service. We Also Have Spare Parts Compatible With Irobot Roomba E5, I7, I7+, E5154, E5158, I7154, I7158.Replacement Kit Compatible With Roomba E5 / I7 / I7+ Comes Consists Of A High Quality Central Vacuum Roller, Fully Compatible With Your Robot Sweeper. It'S The Ideal Package To Keep Your Roomba Fully Operational For 2 To 4 Years. 4 Months. The Duration And The Best Way To Maintain The Spare Parts Are As Follows:For Maintenance, It Is Important To Remember That They Must Be Maintained And Cleaned Regularly. Here Are The Ideal Replacement Times And Their Durability. : Central Extraction Brush : It Must Be Cleaned At Least Every 3 To 4 Months. 4 Times. Depending On Usage, They Can Be Used For 2 To 5 Years. 4 Months.