ANSO Suspension seal kit compatibility with X-Fusion O2 and O2 Pro air shocks. Cover air can ONLY. Covers all production years from 2008 of X-Fusion O2 and O2 Pro R, RCX, RL, RLR, RLX, Nude, L, RL, RLX models - so it may include some extra seals that are not required for your shock. Include schrader valve core rated for 800 PSI (stock valve core with red seal rated for 350 PSI). 3 main PTFE backup rings included - 1 for air can and 2 for air piston.