Fine filter for Dolphin underwater robot 9991432-R4 pool cleaner[Powerful Filtration] The ultra-fine and heavy-duty paper with more pleats for maximum filtration efficiency, easily removes debris, keeping your pool sparkling<br> [Perfectly Fit]Our Ultra Fine Filter(Replaces Part # 9991432-R4) and climbing ring(Fits with Dolphin 6101611-R4) replacement kit is compatible with Dolphin CC Plus, M200 / M400 / M500/Wave 65/Oasis Z5i/ XL//DX3 DX4 DX6<br> [Simple installation]Soak climbing ring thoroughly in water until they expanded and softened enough to install on rollers. Slide them in slowly and that they are sitting in their designated space.<br> [Premium Quality] firmly supports the filter layer and prevents it from breaking during operation. Not easily deformed when pool water flows through, providing maximum hydraulic efficiency and overall structural stability.<br> Colour:As Shown<br> Material:plastic<br> Package Contents:<br> 4 x filter elements<br> 4 x rock climbing ring<br> Only the above package content, other products are not included.<br> 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.