MP40 QD Wet Side O Ring Stretched

Typlus5

Member
Have a weird issue with all three my MP40 QD wet sides…seems all three have stretched o-rings and allows the grille to randomly come off and land on the bottom of the tank. Worse yet, exposing the fish to an unprotected propeller.
I haven’t changed my wet side cleaning regimen or have I ever removed said o-rings…how can it stretch?
Guess I’ll need replacements.
 
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