Do NOT use the BW/BC spanner wrench to tighten the big clear housing sump. Over tightening the sump can cause damage to the O-rings and make re-opening the housing sump difficult. You should only hand tighten the housing sump. This wrench is also knows as the American Plumber WWBC wrench for American Plumber Big Clear Housings.
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Item# : SPM9279274729
Model # : iSH09-M501215mn