A-1 Performance Plumbing 200 Series 45 Degree Swivel Hose End -6 AN Female - Blue/Red H770001XXX it means that these are

it means that these are not suitable for open-top car racing or for karting

GT5 Carbon

5 pt sport latch and link

Double Layer Nomex Knit Construction

7602 kint includes a quick disconnect pin and post for quick removal

A-1 Performance Plumbing 200 Series 45 Degree Swivel Hose End -6 AN Female - Blue/Red H770001XXX it means that these areExtreme performance is what you can count on from our 200 series hose ends. Our single nipple design swivel hose ends give you a full 360 of adjustability. These re usable hose ends feature "smooth bend" technology for increased flow and performance. Available in traditional red and blue. A 1 Performance Plumbing is quickly becoming a leader in high quality competition plumbing. Quality, reliability and performance you can depend on. Product