To find the correct size, you should:
1. Check your owner's manual: This is the most reliable source. The manual will specify the correct wiper blade sizes for your specific Wrangler model.
2. Look at the existing wiper blades: The size is usually printed on the blade itself.
3. Use an online wiper blade size finder: Many websites allow you to input your vehicle's year, make, and model to determine the correct wiper blade sizes. However, these tools aren't always perfectly accurate, so confirm with the other methods above.
4. Check with a parts store: Auto parts stores (both online and brick-and-mortar) can help you identify the correct size based on your Jeep's year, make, and model.
Without knowing your specific trim level, it's impossible to provide a definitive answer.