18 Volt Vacuum Air Filter Replacement compatible with Ryobi Strut Stick Vacuum Models P718. Valuable package contains 5 assembly kits for Ryobi 18V filter replacement, includes 5 filters and 5 pre-filters. Filter replacement for Ryobi P718 18-volt Stick Vacuum helps capture fine particles and prevents them from entering the air you breathe. These replacement air filters are easy to assemble and install. We recommend replacing the filters every 6 months for optimal performance. Material: Plastic Color: As Shown Package Contents: 5 x Filter with 5 x Pre-Screen Filter Only the above package content is included; other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture to be slightly different from the actual item. Measurement allowance is +/- 1-3 cm.