diff --git a/docs/book/v3/migration/v2-to-v3.md b/docs/book/v3/migration/v2-to-v3.md
index 802eebde..5bfa45ef 100644
--- a/docs/book/v3/migration/v2-to-v3.md
+++ b/docs/book/v3/migration/v2-to-v3.md
@@ -131,6 +131,15 @@ Additionally, `$options['pattern']` _must_ be provided at construction time or a
 
 Exceptions for invalid or empty patterns are now thrown during construct rather than when the filter is invoked.
 
+#### `RealPath`
+
+The following methods have been removed:
+
+- `setExists`
+- `getExists`
+
+The constructor now only accepts an associative array of [documented options](../standard-filters.md#realPath).
+
 #### `SeparatorToCamelCase`
 
 The constructor now only accepts an associative array of [documented options](../word.md#separatorToCamelCase).
diff --git a/docs/book/v3/standard-filters.md b/docs/book/v3/standard-filters.md
index df554c3b..7ac982c4 100644
--- a/docs/book/v3/standard-filters.md
+++ b/docs/book/v3/standard-filters.md
@@ -1156,11 +1156,11 @@ $filtered = $filter->filter($path);
 ### Non-Existing Paths
 
 Sometimes it is useful to get paths to files that do n0t exist; e.g., when you
-want to get the real path for a path you want to create. You can then either
-provide a `FALSE` `exists` value at initiation, or use `setExists()` to set it.
+want to get the real path for a path you want to create. You can then
+provide a `FALSE` `exists` option at initiation.
 
 ```php
-$filter = new Laminas\Filter\RealPath(false);
+$filter = new Laminas\Filter\RealPath(['exists' => false]);
 $path = '/www/var/path/../../non/existing/path';
 $filtered = $filter->filter($path);
 
diff --git a/psalm-baseline.xml b/psalm-baseline.xml
index b0a966b6..c7c3b6f0 100644
--- a/psalm-baseline.xml
+++ b/psalm-baseline.xml
@@ -24,6 +24,7 @@
     </PossiblyInvalidPropertyAssignmentValue>
     <PossiblyUnusedMethod>
       <code><![CDATA[applyFilterOnlyToStringableValuesAndStringableArrayValues]]></code>
+      <code><![CDATA[isOptions]]></code>
     </PossiblyUnusedMethod>
     <RedundantConditionGivenDocblockType>
       <code><![CDATA[is_object($options)]]></code>
@@ -536,27 +537,6 @@
       <code><![CDATA[Module]]></code>
     </UnusedClass>
   </file>
-  <file src="src/RealPath.php">
-    <DeprecatedClass>
-      <code><![CDATA[AbstractFilter]]></code>
-    </DeprecatedClass>
-    <InvalidPropertyAssignmentValue>
-      <code><![CDATA[$this->options]]></code>
-      <code><![CDATA[[
-        'exists' => true,
-    ]]]></code>
-    </InvalidPropertyAssignmentValue>
-    <PossiblyInvalidArgument>
-      <code><![CDATA[$existsOrOptions]]></code>
-      <code><![CDATA[$existsOrOptions]]></code>
-    </PossiblyInvalidArgument>
-    <RedundantCastGivenDocblockType>
-      <code><![CDATA[(bool) $flag]]></code>
-    </RedundantCastGivenDocblockType>
-    <RedundantConditionGivenDocblockType>
-      <code><![CDATA[$existsOrOptions !== null]]></code>
-    </RedundantConditionGivenDocblockType>
-  </file>
   <file src="src/StripTags.php">
     <DeprecatedClass>
       <code><![CDATA[AbstractFilter]]></code>
@@ -828,9 +808,6 @@
     </PossiblyUnusedMethod>
   </file>
   <file src="test/RealPathTest.php">
-    <InvalidArgument>
-      <code><![CDATA[['unknown']]]></code>
-    </InvalidArgument>
     <PossiblyUnusedMethod>
       <code><![CDATA[returnUnfilteredDataProvider]]></code>
     </PossiblyUnusedMethod>
diff --git a/src/RealPath.php b/src/RealPath.php
index dff15b3c..94a8f328 100644
--- a/src/RealPath.php
+++ b/src/RealPath.php
@@ -5,7 +5,6 @@
 namespace Laminas\Filter;
 
 use Laminas\Stdlib\ErrorHandler;
-use Traversable;
 
 use function array_pop;
 use function explode;
@@ -24,66 +23,20 @@
 
 /**
  * @psalm-type Options = array{
- *     exists: bool,
- *     ...
+ *     exists?: bool,
  * }
- * @template TOptions of Options
- * @extends AbstractFilter<TOptions>
+ * @implements FilterInterface<string|array<array-key, string|mixed>>
  */
-final class RealPath extends AbstractFilter
+final class RealPath implements FilterInterface
 {
-    /** @var TOptions $options */
-    protected $options = [
-        'exists' => true,
-    ];
+    private readonly bool $pathMustExist;
 
-    /**
-     * @param  bool|Traversable|Options $existsOrOptions Options to set
-     */
-    public function __construct($existsOrOptions = true)
+    /** @param Options $options */
+    public function __construct(array $options = [])
     {
-        if ($existsOrOptions !== null) {
-            if (! static::isOptions($existsOrOptions)) {
-                $this->setExists($existsOrOptions);
-            } else {
-                $this->setOptions($existsOrOptions);
-            }
-        }
-    }
-
-    /**
-     * Sets if the path has to exist
-     * TRUE when the path must exist
-     * FALSE when not existing paths can be given
-     *
-     * @param  bool $flag Path must exist
-     * @return self
-     */
-    public function setExists($flag = true)
-    {
-        $this->options['exists'] = (bool) $flag;
-        return $this;
+        $this->pathMustExist = $options['exists'] ?? true;
     }
 
-    /**
-     * Returns true if the filtered path must exist
-     *
-     * @return bool
-     */
-    public function getExists()
-    {
-        return $this->options['exists'];
-    }
-
-    /**
-     * Defined by Laminas\Filter\FilterInterface
-     *
-     * Returns realpath($value)
-     *
-     * If the value provided is non-scalar, the value will remain unfiltered
-     *
-     * @psalm-return ($value is string ? string : mixed)
-     */
     public function filter(mixed $value): mixed
     {
         if (! is_string($value)) {
@@ -91,7 +44,7 @@ public function filter(mixed $value): mixed
         }
         $path = (string) $value;
 
-        if ($this->options['exists']) {
+        if ($this->pathMustExist) {
             return realpath($path);
         }
 
@@ -132,4 +85,9 @@ public function filter(mixed $value): mixed
 
         return $drive . DIRECTORY_SEPARATOR . implode(DIRECTORY_SEPARATOR, $stack);
     }
+
+    public function __invoke(mixed $value): mixed
+    {
+        return $this->filter($value);
+    }
 }
diff --git a/test/RealPathTest.php b/test/RealPathTest.php
index a5a2d5ea..5488b036 100644
--- a/test/RealPathTest.php
+++ b/test/RealPathTest.php
@@ -16,20 +16,17 @@
 
 class RealPathTest extends TestCase
 {
-    private RealPathFilter $filter;
-
-    public function setUp(): void
-    {
-        $this->filter = new RealPathFilter();
-    }
-
     /**
      * Ensures expected behavior for existing file
      */
     public function testFileExists(): void
     {
+        $filter = new RealPathFilter();
+
         $filename = __DIR__ . '/_files/file.1';
-        $result   = $this->filter->filter($filename);
+        $result   = $filter->filter($filename);
+
+        self::assertIsString($result);
         self::assertStringContainsString($filename, $result);
     }
 
@@ -38,28 +35,19 @@ public function testFileExists(): void
      */
     public function testFileNonexistent(): void
     {
+        $filter = new RealPathFilter();
+
         $path = '/path/to/nonexistent';
         if (str_contains(PHP_OS, 'BSD')) {
-            self::assertSame($path, $this->filter->filter($path));
+            self::assertSame($path, $filter->filter($path));
         } else {
-            self::assertSame(false, $this->filter->filter($path));
+            self::assertSame(false, $filter->filter($path));
         }
     }
 
-    public function testGetAndSetExistsParameter(): void
-    {
-        self::assertTrue($this->filter->getExists());
-        $this->filter->setExists(false);
-        self::assertFalse($this->filter->getExists());
-
-        $this->filter->setExists(['unknown']);
-        self::assertTrue($this->filter->getExists());
-    }
-
     public function testNonExistentPath(): void
     {
-        $filter = $this->filter;
-        $filter->setExists(false);
+        $filter = new RealPathFilter(['exists' => false]);
 
         $path = __DIR__ . DIRECTORY_SEPARATOR . '_files';
         self::assertSame($path, $filter($path));