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US Pat No. 4,630,634.For spas and small swimming pools. Linear polyethylene and foam filled. Dispersal is controlled by adjusting amount of chemical exposed to water by unique dial device. Holds 1-3/16 in. diameter tablets. Prevents floating items from hanging up or drifting away. Has 36 in. cord and molded anchor plate with pressure sensitive pad to adhere to most surfaces. |
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