2Pcs Speaker Port Tubes, 100mm Opening Box Bass Air Ports Inverter Tube, with Rodent Resistant Net, for 8 12 Inch Speakers

✿【Brief Introduction】The height of the inverted tube is 115mm and the opening is 100mm. It is suitable for speakers with 8-12 inch speakers. ✿【Smooth Airflow】The inner side is smooth and the bell ends are designed at both ends. The airflow is very smooth and the airflow is obviously improved. ✿【Speaker Port Tubes】Speaker inverting hole, also known as sound tube and air hole, often used in inverting type speakers.It is mainly to overpower the air flow sound of the speaker vibration in the box and overlap the sound pressure of the radiation in front of the speaker to produce a bass effect. ✿【With Rodent-Resistant Net】With anti - rat net to prevent rats from damaging the product, more considerate. ✿【High Quality and Durable】Made of high quality ABS plastic, this product is sturdy and