At the risk of opening up another can of worms you might take one out of the other side for comparison. On the other hand you probably won’t be able to get the rusted ones out so maybe if you’ll be just adding new it won’t matter if they are the same, Take heed to do frequent detailed inspections for possible leaks regularly. Water is relentless. I spend an hour or two every three or four months and rarely fail to find something needing attention. Good luck!
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