tender for supply of spares for r.o. plant , membranes - make- dupont/torray , resin for mix bed- make- ion exchange/thermax- anion , resin for mix bed- make- ion exchange/thermax- cation , media for cooling tower mgf - carbon make- ion exchange/thermax , media for cooling tower mgf - stone make- ion exchange/thermax , cartridge filter (micro - 5, threaded ) (pp) , media for r.o. mgf - sand make - ion exchange/thermax , media for r.o. mgf - coal/fine silt make - ion exchange/thermax , media for r.o. mgf - coarse silt make - ion exchange/thermax , media for r.o. mgf - pebbles make - ion exchange/thermax , media for r.o. mgf - gravels make - ion exchange/thermax , resin for softener indion na-225/t-42na, make -ion exchange/thermax , tds meter (hand held) make -ion exchange/thermax/aquafol , silica test kit (lower ranger) 1.14410.0001 merck make , silica test kit (high ranger) 1.14792.0001 merck make