The original valve part number was RGP1016515. Since this valve part #GP1016515 looked identical and just removed the "R" I took a chance and it worked great on my Kohler model R10412-BN-AB faucet. Time will tell if it will hold up, so I can't answer its long-term reliability in this review. The defective original valve was bought in 2007 together with the faucet. I also replaced the o-ring with kit #GP30420 which fixed the leak.
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