Have questions about this product? Our experts are here to help! Email Find Your Nearest Location S501 Replacement Scale Inhibitor Filter for S500SS SKU: FIRS501 Franklin Electric S501 Selling UnitEA Price: $66.65 Available for Pickup Only Out of Stock MY STORE: (CHANGE) Quantity - Decrease Quantity + Increase Quantity You have exceed the amount available for purchase. If you purchase more than what is in our current inventory, the web shipping department will review your order and e-mail you with more information. Print Share Have questions about this product? Our experts are here to help! Email Find Your Nearest Location