Koroao Professional Underwater Switchable Diving Filter Set for Gopro Hero HD 3+ 4 Hero+, Hero+LCD Cameras Sports Accessory Compatible with HERO4 HERO3+ Standard Housing ONLY. 3 Red filters for blue water, magenta filter for green water, yellow filter for night activity Capture your best footages with the right color lens filter according to water depth Blue water: 5-20 feet; 20-50 feet; 50+ feet red filters, universal green water filter and night activity yellow filter Full water depth coverage and perfect for diving