Case 5138 Plunger Cup Washers
$17.53
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Pack of 50 rubber plunger cup washers for the 5150 ballcock, which is used in the Case models 100 and 1100. The model 3000 also uses the fill valve, therefore these cup washers will work on that model as well.
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$17.25
$15.19
(-$2.06)
$15.19
$16.07
(+$0.88)
$16.07
$17.53
(+$1.46)