Abstract: Activated charcoal is infused in the material of at least a portion of one component amongst a hose accessory (e.g., a nozzle), an inner flow conductor (e.g., tube) of a hose, and a hose connector for connecting the hose to the accessory or a water source, to convey, to the component, an adsorption property to adsorb undesirable components in water contacting the component.