MRC:
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.FEAT
Special Features:
Kit includes: instructions, 330-030 screw 1, 330-035 washer 1, 510-008 o-ring 2, 510-010 o-ring 1, 510-029 o-ring 1, 510-260 view port o-ring 1, 510-450 neck ring o-ring 1, 510-490 o-ring 1, 510-504 neoprene medium neck dam 1, 510-550 oral nasal valve 1, 510-575 nose block pad 1, 510-625 water dump shroud 1, 510-682 head cushion 1, 510-683 chin coushion 1, 510-747 oral nasal mask 1, 515-033 communication set 1, 520-042 tie wrap 1, 525-309 regulator rebuild kit 1, 525-311 side block rebuild kit 1, 525-755 tri-valve exhaust kit 1, 530-035 screw 2, 530-045 screw 1, 530-061 spacer 2, and 550-122 spring spacer 1.