This is the one i'm looking at:
$135.00 - OCEAN WAVE FIVE STAGE 75 GPD RO/DI
All systems are made to order with clear 10" canister housings
Stage One NSF rated 5 micron poly sediment filter
Stage Two 5 Micron Matrikx NSF rated CTO/2 carbon block filter
Stage Three 0.6 Micron Matrikx NSF rated +1Chlorine Guzzler carbon block
RO membrane 75 GPD Dow FilmTec
Stage Five in-line color-changing DI cartridge
Quick connect fittings
Self Piercing Saddle Valve Water Supply Connection
Drain Connection
Filter wrench to make cartridge replacement easy