Float valve for U-3 skimmer fits, but has a weak flap
Skimmer float for the trusty U-3 skimmer. However, the replacement from Pentair has a defective flap to switch from skimmer to floor drain that does not last more than about five or so years. The rest of the float is good. The flap alone is 40% the cost of the whole float valve with a new O ring.