Hello, I am in search of a 5 stage multimedia cartridge to use in my domestic RO Unit.The requirement is mentioned below. Quote me the best price for the cartridge as i will be needing 150000 units of those within the time span of 3 months. Also let me know how much units will fit into a single container and in how much less time you can deliver the whole order. Also i will need gravity filtration and the flow i will need will be 1 liter per hour. You can contact me at my contact number or email. The cartridge should be in 5 stages each having the following minerals - 1. Silver coated Activated carbon, 2. Magnesium Dioxide, 3. Green sand for iron removal, 4. Sand, and 5. Activated Alumina. Show More