O-Ring for Hill MK3

I put one of these o-rings in my Hill Pump yesterday and topped off a PCP to 220 bar. The original o-ring lasted over 2 yrs of heavy use hopefully these new ones will do the same or better.

.177 Beeman R9
.22 Airforce Condor
.25 FX Royale 500
.25 Evanix Rainstorm Bull Pup
.25 Edgun R3M