ecoone Hose Filterecoone Hose Filter The ecoone Hose Filter (pre filter) is unlike other hose filters in the industry and filters up to 40,000 gallons of water. The all purpose ecoone Hose Filter removes or greatly reduces thousands of water contaminants and easily attaches to a standard garden hose to provide fresh, pure, clean and decontaminated water for all of your outdoor water needs. The proprietary dual chamber design is a combination of granual activated carbon