Gard N Gro Garden Hose Dechlorinator is the perfect solution for plants. This dechlorinator eliminates the toxic effects of chlorine from your garden hose water: This system should not to be used as a drinking water filter. Since chlorine is designed to kill living organisms like bacteria and fungi it can be harmful to your plants as they require some of each to survive. The dechlorinator is also a great choice if you are making compost tea. Works best with low flow-rate applications such as drip irrigation, soaker hoses, hand watering guns, or mist systems.