Which brake pad do I need for Shimano® 4-piston SLX / XT / XTR?

Shimano® 4-piston calipers ALL use the same brake pad design. From the base-level Deore® to XT, SLX, Saint, Zee, XTR and so on. 

THE FOLLOWING MODELS FIT *ALL* 4-PISTON SHIMANO® BRAKE SETS: 

Red Label RACE - RL131

Gold Label HD - GL131