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The Pentair R171066 Rainbow 300-29 is an automatic chlorine and bromine off-line feeder designed for pools and spas. This product uses a triple-capacity chamber that treats between fourteen thousand to fifty-seven thousand gallons of water. It operates on the pressure side of the pump, ensuring consistent chemical distribution without needing special venting.
This feeder is ideal for retrofitting existing pools or spas and is compatible only with slow-dissolving trichlor or bromine tablets.
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