1. Compatible Design: These ultrafine replacement screens are specifically designed for Dolphin pool cleaners, offering seamless integration with models like DX3 and DX4. The precise fit ensures your robotic pool cleaner continues to operate with peak efficiency, maintaining crystalclear water without interruption. These 9991422R4 filters are engineered to exact specifications to match your original equipment, delivering reliable performance every time. 2. Enhanced Filtration Technology: Our ultrafine filter panels capture microscopic particles and fine debris that standard filters might miss. The advanced filtration system helps preserve water quality and reduces the need for chemicals. This pool cleaner accessory works tirelessly to trap debris as small as 2 microns, keeping your pool sparkling clean and ready for enjoyment all season long. 3. Durable Construction: Made from sturdy plastic materials resistant to pool chemicals and constant water exposure, these filter screens maintain their integrity even with regular use. The reinforced design withstands the demands of continuous cleaning cycles without warping or breaking. This rugged construction means fewer replacements and consistent cleaning performance over multiple swimming seasons. 4. Easy Installation: your wornout filters in minutes with our userfriendly design. No special tools or technical skills required—simply remove the old front panel and snap the one into place. The intuitive installation process quickly gets your pool cleaner back to work, minimizing downtime and keeping your pool maintenance routine on track. Each filter panel installs securely to ensure proper functionality.