The red color correction filter is specifically designed for use in tropical waters and is blue in 10-20m deep. The red coloring balances out the incredible blue cast caused by the water to give it a boost of vibrancy and a more natural looking white balance.
 
These filters are manufactured from durable optical acrylic for increased protection and maintain image sharpness. The snap-on design also allows for quick installation and removal of the filter while underwater.
 
For Use in Tropical and Blue Water (within 10-20 m under water, during the day to return the red light absorbed by water)

Snap-On Design
Optical Acrylic Construction for lens protection
Compatible with GoPro Hero 3+ (AHSRH-301) and Hero4 (AHSRH-401)