Atomic B2 Color Kits Atomic has a series of color kits to do just that. Kit allows you to color coordinate your dive gear so not only will you have some of the finest equipment available you'll look good too! Atomics Color Kit for the B2 Regulator are available in gray, red, yellow, royal blue, black and pink or purple. Match your fins, BCD or wet suit accent colors, mask, snorkel or other gear. Easy to install and you will be a well color coordinated diver. Kit included mouthpiece, purge cover, adjustment knob, knob screw, exhaust deflector and tie-wrap in the color of your choice. Purge cover is made from a soft pliable plastic, mouthpiece is silicone, and purge deflector, knob, knob screw and the tie wrap are plastic.