diff --git a/src/Form/CheckboxWidgetForm.php b/src/Form/CheckboxWidgetForm.php
index 33beff9..36676a0 100644
--- a/src/Form/CheckboxWidgetForm.php
+++ b/src/Form/CheckboxWidgetForm.php
@@ -96,40 +96,20 @@ class CheckboxWidgetForm implements BaseFormIdInterface {
     $values = $form_state->getValues();
     $facet = $this->facet;
 
-    $result_link = FALSE;
     $active_items = [];
-
     foreach ($values[$facet->getFieldAlias()] as $key => $value) {
       if ($value !== 0) {
         $active_items[] = $value;
       }
     }
 
-    foreach ($facet->getResults() as $result) {
-      if (in_array($result->getRawValue(), $active_items)) {
-        $result_link = $result->getUrl();
-      }
-    }
-
-    // We have an active item, so we redirect to the page that has that facet
-    // selected. This should be an absolute link because RedirectResponse is a
-    // symfony class that requires a full URL.
-    if ($result_link instanceof Url) {
-      $result_link->setAbsolute();
-      $form_state->setResponse(new RedirectResponse($result_link->toString()));
-      return;
-    }
+    $url_processor_name = $facet->getUrlProcessorName();
+    $manager = \Drupal::getContainer()->get('plugin.manager.facets.url_processor');
+    $url_processor = $manager->createInstance($url_processor_name, ['facet' => $facet]);
 
-    // The form was submitted but nothing was active in the form, we should
-    // still redirect, but the url for the new page can't come from a result.
-    // So we're redirecting to the facet source's page.
-    $path = $facet->getFacetSource()->getPath();
-    if (substr($path, 0, 1) !== '/') {
-      $path = '/' . $path;
-    }
-    $link = Url::fromUserInput($path);
-    $link->setAbsolute();
-    $form_state->setResponse(new RedirectResponse($link->toString()));
+    $result_link = $url_processor->getUrlMultipleItemsAtOnce($facet, $active_items);
+    $result_link->setAbsolute();
+    $form_state->setResponse(new RedirectResponse($result_link->toString()));
   }
 
 }
diff --git a/src/Plugin/facets/url_processor/QueryString.php b/src/Plugin/facets/url_processor/QueryString.php
index 125cc1a..07abd56 100644
--- a/src/Plugin/facets/url_processor/QueryString.php
+++ b/src/Plugin/facets/url_processor/QueryString.php
@@ -49,6 +49,46 @@ class QueryString extends UrlProcessorPluginBase {
   /**
    * {@inheritdoc}
    */
+  public function getUrlMultipleItemsAtOnce(FacetInterface $facet, array $current_facet_enabled_items){
+    // Set the url alias from the the facet object.
+    $this->urlAlias = $facet->getUrlAlias();
+
+    // First get the current list of get parameters.
+    $get_params = $this->request->query;
+    $filter_params = $get_params->get($this->filterKey, [], TRUE);
+
+    // Remove possible items from current facet first.
+    foreach($filter_params as $key => $value){
+      $parts = explode( self::SEPARATOR , $value);
+      if($parts[0] == $this->urlAlias){
+        unset($filter_params[$key]);
+      }
+    }
+
+    // Enable only items from $enabled_items (again) for current facet.
+    foreach($current_facet_enabled_items as $enabled_item){
+      $filter_string = $this->urlAlias . self::SEPARATOR . $enabled_item;
+      $filter_params[] = $filter_string;
+    }
+
+    $request = $this->request;
+    if ($facet->getFacetSource()->getPath()) {
+      $request = Request::create($facet->getFacetSource()->getPath());
+    }
+    $url = Url::createFromRequest($request);
+
+
+    $result_get_params = clone $get_params;
+    $result_get_params->set($this->filterKey, array_values($filter_params));
+    $url = clone $url;
+    $url->setOption('query', $result_get_params->all());
+
+    return $url;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
   public function buildUrls(FacetInterface $facet, array $results) {
     // No results are found for this facet, so don't try to create urls.
     if (empty($results)) {
diff --git a/src/UrlProcessor/UrlProcessorInterface.php b/src/UrlProcessor/UrlProcessorInterface.php
index e014676..7581595 100644
--- a/src/UrlProcessor/UrlProcessorInterface.php
+++ b/src/UrlProcessor/UrlProcessorInterface.php
@@ -50,4 +50,23 @@ interface UrlProcessorInterface {
    */
   public function getFilterKey();
 
+  /**
+   * Gets the url for changing multiple items at once for one facet specific.
+   *
+   * Certain widgets (e.g. the checkbox widget) can enable/disable multiple
+   * items at once in one request.  This function allows building urls for those
+   * widgets. Note, the $current_facet_enabled_items contains only the enabled
+   * items for the given facet. There can be other enabled items, as should be
+   * determined by the url processor.
+   *
+   * @param \Drupal\facets\FacetInterface $facet
+   *   The facet that is changing certain items.
+   * @param array $current_facet_enabled_items
+   *   Array of enabled raw values for the current facet.
+   *
+   * @return \Drupal\Core\Url
+   *   Url to filter on enabled items for given facet.
+   */
+  public function getUrlMultipleItemsAtOnce(FacetInterface $facet, array $current_facet_enabled_items);
+
 }
diff --git a/tests/facets_query_processor/src/Plugin/facets/url_processor/DummyQuery.php b/tests/facets_query_processor/src/Plugin/facets/url_processor/DummyQuery.php
index 8eead55..d217a88 100644
--- a/tests/facets_query_processor/src/Plugin/facets/url_processor/DummyQuery.php
+++ b/tests/facets_query_processor/src/Plugin/facets/url_processor/DummyQuery.php
@@ -135,4 +135,42 @@ class DummyQuery extends UrlProcessorPluginBase {
     }
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function getUrlMultipleItemsAtOnce(FacetInterface $facet, array $current_facet_enabled_items){
+    // Set the url alias from the the facet object.
+    $this->urlAlias = $facet->getUrlAlias();
+
+    // First get the current list of get parameters.
+    $get_params = $this->request->query;
+    $filter_params = $get_params->get($this->filterKey, [], TRUE);
+
+    foreach($filter_params as $key => $value){
+      $parts = explode( self::SEPARATOR , $value);
+      if($parts[0] == $this->urlAlias){
+        unset($filter_params[$key]);
+      }
+    }
+
+    foreach($current_facet_enabled_items as $enabled_item){
+      $filter_string = $this->urlAlias . self::SEPARATOR . $enabled_item;
+      $filter_params[] = $filter_string;
+    }
+
+    $request = $this->request;
+    if ($facet->getFacetSource()->getPath()) {
+      $request = Request::create($facet->getFacetSource()->getPath());
+    }
+    $url = Url::createFromRequest($request);
+
+
+    $result_get_params = clone $get_params;
+    $result_get_params->set($this->filterKey, array_values($filter_params));
+    $url = clone $url;
+    $url->setOption('query', $result_get_params->all());
+
+    return $url;
+  }
+
 }