Includes all O rings required to service your pump.

Original FX Spec seal kit.

Correct materials and hardness ratings for every O Ring.

Includes full O Ring sizing chart so you know which seal is which!

Numbers provided on sizing chart on our website (link provided with the kit)

Please note our current final stage seal is black - it is the same spec but the ring has been dyed

We do not just send you a bag of seals and expect you to work out which is which!