Hi Aarcool, Thank you for your question. You are correct that you will want to change out the stem assemblies, seats, and springs to stop a dripping faucet. The model 3530-LHP uses the RP25513 stem assembly and RP4993 seats and springs. Here is a link to the parts break down for the model 3530 to help with your repair.http://www.deltafaucet.com/customer...
answered 1 week, 3 days ago