DetailsOut Of Stock Universal Carbon Block 1 Micron $45.00 The Universal Carbon Block 1 Micron is developed by BRS to be the best industry solution for chloramines, chlorine and well water to help make filter selection easier for everyone. Specifically formulated for 1 micron Nominal Filtration Suitable for use in any 10 inch RO housing Chlorine 35,000 @ 1 GPM Chloramines 3,500 @ 0.5 GPM High chemical adsorption 30% more carbon than standard blocks Add to Wishlist