Big Blue CTO Carbon Block & Sediment Water Filters 4.5" x 20" Cartridges Set Cartridge Type_Pleated Sediment Outlet - 1” NPT

Outlet - 1” NPT

Dull surfaces in bathroom and kitchen

and many other chemicals/contaminants

5” Transparent High Capacity Housing is proper for high-flow applications

The NT-1 accepts all standard 10-inch replacement filter elements (To achieve the best water quality use only Ronaqua cartridges)

Big Blue CTO Carbon Block & Sediment Water Filters 4.5" x 20" Cartridges Set Cartridge Type_Pleated Sediment Outlet - 1” NPTBig Blue CTO Carbon Block Water Filters 4. 5" x 20" Whole House Cartridges 20" Big Blue Block Activated Carbon filters are similar in their performance to that of GAC filters, being made of fine coconut shell carbon they also do remove odors and tastes of many organic compounds, chlorine especially. Though, because this filters are made of a packed carbon (forming a cylinder block), they offer a much finer filtration of suspended particles and dirt.