Watershot's Red Filter enhances warm reds and oranges in tropical "blue" water. The filter helps to give your subject a rich, natural tone. Filters come with M32 thread to easily mount onto the lens bezel on the Watershot® Smart Phone Housings. Filter can be installed and removed in or out of the water. 

Note: Compatible with all Watershot® housings and ports that have the M32 external thread mount feature - this includes the iPhone 4, iPhone 5, Samsung S3, Samsung S4, and the flat port on the PRO for iPhone 5 housing (Not compatible with the removable wide angle port included with the PRO for iPhone 5, and also not compatible with the WSIP4-011 wide angle accessory lens and WSSG4-002 removable wide angle port)