Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si [Compatibility ]- Premium Replacement Parts provides a Filter for the following models: NV350 NV351, NV352, NV355, NV356E, NV357, NV360, NV370, NV391, UV440, UV490, UV540. This part is made to replace for Part # XFF350 and XHF350. [Efficiency Filter]- The Vacuum Filter Replacement pack is complete with 4 foam filters, 4 textured felt filters, and 2 allergen trapping HEPA filter. Each material works for maximum efficiency in collecting and trapping dust and allergens. [Premium Quality ]- This filter have Super suction and perfect performance, always premium quality to keep you satisfied and your floors as clean as ever! premium filters are identical to the filter you find in your vacuum. Using this filter to help you keep a sparkling clean floors. [Washable & Reusable ]- Our premium replacement filters now last than ever before! You an now re- each filter simply by rinsing with cold water and allowing to dry.We recommend you to replace the vacuum filter 3-6 months for optimal performance. Protects your vacuum motor, extends the life of your vacuum Colour:white + black Material:plastic Package Contents: 4 x Foam Filters 4 x Felt Filters 2 x HEPA Filters Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.