Drain Ding, water powered drain unclogger, for large drains 3" to 4" in diameter. Attaches to end of hose to cause pulsating valve action to unclog main drains, outside sewer drains, basement drains, & outside deck drains._x000d_ _x000d_ Water Powered large drain opener _x000d_ Uncloggs, sewer and basment drains. _x000d_ .
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