Ikelite Removable External/UR Pro Filter for 3.6" diameter ports
SKU # ike.6441.42
#6441.42 ..... 3.6" ( 9.1 cm) dia Enhances warm reds and oranges with available sunlight up to 80' (24m). Secures to the outside of the Ikelite lens port offering easy installation and removal. Included with all video housings.