Hoover Windtunnel U6430 Upright Self Propelled Vacuum Cleaner, Genuine Replacement Part. Secondary Filter Retainer.. Used in Very Good Condition. This Vacuum and Parts have been discontinued by Hoover and in Limited Supply. If you need it I might have it. Taken From Windtunnel Self Propelled Bagged Upright U6430, Compatible Models U6401,6420, 6423, 6425,6430, 6431, 6432, 6433, 6434, 6435,6436,6437,6441,6545, 6446, 6453,6456,6458,6459,6460,6462, 6470, 6471, 6473, 6474,6476, 6485, 6600, 6607, 6616, 6617, 6618, 6625, 6626, 6632, 6637,6655 , 6660, more.