diff --git a/backend/src/routes/products.js b/backend/src/routes/products.js
index 8b189a7..9b5b61a 100644
--- a/backend/src/routes/products.js
+++ b/backend/src/routes/products.js
@@ -314,7 +314,8 @@ router.post('/user', validateRequest(userProductSchema), async (req, res, next)
       categoryId,
       productType,
       activeIngredients,
-      description
+      description,
+      spreaderSettings
     } = req.body;
 
     // If based on existing product, verify it exists
@@ -346,6 +347,20 @@ router.post('/user', validateRequest(userProductSchema), async (req, res, next)
 
     const userProduct = result.rows[0];
 
+    // Handle spreader settings for granular products
+    if (spreaderSettings && Array.isArray(spreaderSettings) && productType === 'granular') {
+      // Add spreader settings for this user product
+      for (const setting of spreaderSettings) {
+        await pool.query(
+          `INSERT INTO product_spreader_settings 
+           (user_product_id, spreader_brand, spreader_model, setting_value, rate_description, notes)
+           VALUES ($1, $2, $3, $4, $5, $6)`,
+          [userProduct.id, setting.spreaderBrand, setting.spreaderModel, setting.settingValue, 
+           setting.rateDescription, setting.notes]
+        );
+      }
+    }
+
     res.status(201).json({
       success: true,
       message: 'Custom product created successfully',
@@ -380,11 +395,13 @@ router.get('/user/:id', validateParams(idParamSchema), async (req, res, next) =>
     const userProductId = req.params.id;
 
     const result = await pool.query(
-      `SELECT up.*, p.name as base_product_name, p.brand, p.product_type, 
-              p.active_ingredients, pc.name as category_name
+      `SELECT up.*, p.name as base_product_name, p.brand as base_brand, p.product_type as base_product_type, 
+              p.active_ingredients as base_active_ingredients, pc.name as base_category_name,
+              upc.name as custom_category_name
        FROM user_products up
        LEFT JOIN products p ON up.product_id = p.id
        LEFT JOIN product_categories pc ON p.category_id = pc.id
+       LEFT JOIN product_categories upc ON up.category_id = upc.id
        WHERE up.id = $1 AND up.user_id = $2`,
       [userProductId, req.user.id]
     );
@@ -395,6 +412,25 @@ router.get('/user/:id', validateParams(idParamSchema), async (req, res, next) =>
 
     const userProduct = result.rows[0];
 
+    // Get spreader settings for this user product
+    let spreaderSettings = [];
+    const settingsResult = await pool.query(
+      `SELECT * FROM product_spreader_settings 
+       WHERE user_product_id = $1
+       ORDER BY spreader_brand, spreader_model NULLS LAST, setting_value`,
+      [userProductId]
+    );
+    
+    spreaderSettings = settingsResult.rows.map(row => ({
+      id: row.id,
+      spreaderBrand: row.spreader_brand,
+      spreaderModel: row.spreader_model,
+      settingValue: row.setting_value,
+      rateDescription: row.rate_description,
+      notes: row.notes,
+      createdAt: row.created_at
+    }));
+
     res.json({
       success: true,
       data: {
@@ -403,14 +439,18 @@ router.get('/user/:id', validateParams(idParamSchema), async (req, res, next) =>
           baseProductId: userProduct.product_id,
           baseProductName: userProduct.base_product_name,
           customName: userProduct.custom_name,
-          brand: userProduct.brand,
-          categoryName: userProduct.category_name,
-          productType: userProduct.product_type,
-          activeIngredients: userProduct.active_ingredients,
-          customRateAmount: parseFloat(userProduct.custom_rate_amount),
+          brand: userProduct.custom_brand || userProduct.base_brand,
+          categoryName: userProduct.custom_category_name || userProduct.base_category_name,
+          categoryId: userProduct.category_id || (userProduct.product_id ? userProduct.category_id : null),
+          productType: userProduct.custom_product_type || userProduct.base_product_type,
+          activeIngredients: userProduct.custom_active_ingredients || userProduct.base_active_ingredients,
+          description: userProduct.custom_description,
+          customRateAmount: userProduct.custom_rate_amount ? parseFloat(userProduct.custom_rate_amount) : null,
           customRateUnit: userProduct.custom_rate_unit,
           notes: userProduct.notes,
-          createdAt: userProduct.created_at
+          spreaderSettings: spreaderSettings,
+          createdAt: userProduct.created_at,
+          updatedAt: userProduct.updated_at
         }
       }
     });