look this I had an 8 unit apartment building that I did maintenance for we replace them almost 10 years we never had one go bad and these were people that were abusing these are unbelievable , your worries are over with with these
LASCO 04-4104 Fill Valve Magnus Plastic Low Profile, Anti-Syphon, Adjustable 6-Inch to 12-Inch with Refill Tube and Nut 2 Piece Toilets
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