Elevates your cleansing experience with our silver Ions module replacement, ensuring your vacuum operates at hygienes and efficiency. Featuring a slow release mechanism, this silver Ions module continuously dispenses ions to minimize dusts, promoting a cleaner and healthier home environment. Suitable for health individuals, pet owners, and families with children, these modules catering to anyone looking to maintain living space. Easy maintenance is key with this filter sponge plug. As part of regular upkeep, it can be effortlessly removed and replaced, making it convenient for users to maintain their device's efficiency and prolong its lifespan. Enhance your cleaning robot's performance with this essential accessory. The filter sponge helps maintain the cleanliness of the water tank, which in turn contributes to a healthier living environment by reducing potential allergens and pollutants. Applicable Models:Fit For Narwal Freo X Ultra / J4 Quantity:A:4PCS Colour:As Shown Material:Plastic+Sponge Package Contents: 2 x Ag+ Sterilization Silver Ion Module 2 x Water Tank Foam Filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.