Product review (4 stars): This works as advertised. However, you'll get more ...
This replacement kit works as advertised. However, you'll get more bang for your buck if you order the one with the water inlet as well. It'll cost you $5-$10 more and you'll get both the floater and the valve. Since you'll need to pull the washer out anyway, you might as well replace both. They are located in the same spot already and all you need is simple tools.