Kohler has two hose options available for the K-10433 Forte pull-out kitchen faucet. Please use the following as a reference when ordering a replacement pull-out hose.
 

Hose Option #1

If the faucet was manufactured between August 2004 - January 2009, and has a stainless steel braided hose with a white fitting and grey clip, the replacement pull-out hose is part number 1041320-CP.

 

Hose Option #2

If the faucet was manufactured after January 2009, and the faucet has a copper tube with a white fitting on the outside or the inside of the copper tube, the replacement pull-out hose is part number 1114379-BC.