The Red color-correction filter for the SeaLife SportDiver is essential for restoring natural underwater colors in blue water conditions. Designed for depths ranging from 10ft/3m to 60ft/18m, this filter performs best when not using an external light. It also serves as a protective cover for the SportDiver’s optical glass port, ensuring the longevity of your equipment. This removable filter is compatible with both the SeaLife SportDiver and SportDiver Ultra underwater smartphone housings. It easily attaches and removes from the SportDiver optical lens frame while underwater. Crafted from optical acrylic infused with proprietary color pigments, the filter provides exceptional durability and performance. A lanyard is included for secure attachment to the housing. For green water conditions, consider using the Magenta Color-Correction Filter, item SL40003.