Multipure recommends customers change the MC351S o-ring every two years to properly maintain the filter system.
This replacement O-ring is used in stainless-steel Multipure drinking water systems to help ensure a tight seal and maintain internal pressure.
- Compatible with: Aquaperform (MP880), Aquaversa (MP750), MP400, MPC250
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The O-Ring solved the problem and was shipped and arrived fast.
o ring is absolute perfect fit
I find its always best to replace rubber type seals when doing maintenance.
O-Ring for Stainless Steel Drinking Water Systems
Perfect fit and I recommend replacing this every year.