Contractor shall provide preventative maintenance of 4 WRO300H Reverse Osmosis (R.O.) Machines + Carbon Filter Tanks supplied by MAR COR PIN 920-03-835 Rev 1, and CWP 100, Model WRO H/S at Keesler Air... Contractor shall provide preventative maintenance of 4 WRO300H Reverse Osmosis (R.O.) Machines + Carbon Filter Tanks supplied by MAR COR PIN 920-03-835 Rev 1, and CWP 100, Model WRO H/S at Keesler Air Force Base. Questions Due: 23 April 2026 at 10am CST in writing to dale.a.padro.civ@health.mil and stefany.gonzalez.civ@health.mil.