This JL Audio's fixture is specifically designed for mounting ETXv2 and ETXv3 enclosures on 1.315" pipes. It provides a secure and stable attachment, allowing you to mount your JL Audio speakers on a variety of pipe configurations. Perfect for creating a robust setup with your ETX series speakers.• Designed for 1.315" pipe mounting• Compatible with ETXv2 and ETXv3 models• Durable construction for long-lasting performance• Provides stable, secure speaker attachment | JL Audio ETXv3 Enclosed System Fixture f/ Pipe Mounting 1.315