Compatibility These ultrafine replacement covers are designed specifically for Dolphin robot pool cleaners and provide a seamless fit with models such as DX3 and DX4, with no modifications required for proper fit. Advanced filtration system High efficiency filtration technology captures even the smallest dirt particles and deposits, helping keep your pool clean while reducing the need for chemical treatments. Durable construction Made from robust plastic materials that withstand sun exposure and regular use, these front panels deliver reliable performance across multiple cleaning cycles without warping or degradation. Quick replacement design No special tools are needed for installation – simply remove the old front panels and snap in the new ones to immediately restore optimal filtration and extend the life of your cleaner. Use scenarios - Routine maintenance for Dolphin DX3 or DX4 users: swap in these ultrafine covers between service cycles to sustain strong filtration and cleaner performance. - High sun exposure or outdoor pools: replace worn panels to maintain durability and consistent operation in sunny environments. - Fine debris or allergen periods: use these covers to maximize filtration efficiency when the pool contains pollen, fine sand, or similar particles.