Dual Stage Bracket – Fits 4.5" x 10" & 4.5" x 20" Big Blue Filter Housings bulk reef supply 5” x 10” Bone Char

5” x 10” Bone Char Filter Cartridge combines specialized fluoride and heavy metal reduction with Big Blue capacity for whole-home protection

5” x 20” Catalytic Carbon Filter Cartridge is the ultimate Big Blue whole-house solution for families who want long-lasting

5” x 10” Activated Alumina / GAC Cartridge combines activated alumina adsorption with GAC polishing in a Big Blue format for higher flow and capacity

Built in USA

Dual Stage Bracket – Fits 4.5" x 10" & 4.5" x 20" Big Blue Filter Housings bulk reef supply 5” x 10” Bone CharDual Stage Bracket is specially designed to mount two 4. 5" OD Big Blue commercial grade filter housings securely in place. Built with heavy duty construction, this bracket provides excellent stability and support for two stage water filtration setups, ensuring reliable long term performance. Ideal for whole house, commercial, and industrial water filtration systems, this bracket is compatible with most Big Blue housings and offers a simple,