2PCS 100mm Opening Speaker Inverter Tube with Rodent Resistant Net for 812 Inch Speakers

Feature: 1. The height of the inverted tube is 115mm and the opening is 100mm. It is suitable for speakers with 812 inch speakers. 2. 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. 3. 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. 4. With anti rat net to prevent rats from damaging the product, more considerate. 5. Made of high quality ABS plastic, this product is sturdy and durable. Specification: Item Type: Inverter Tube Height: Approx. 115mm 4.53in (as shown in picture) Opening: Approx. 100mm 3.94in (as shown in picture) Package List: Inverter Tube x 2The height of the inverted tube is 115mm and the opening is 100mm. It is suitable for speakers with 812 inch speakers. 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 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 With anti rat net to prevent rats from damaging the product, more considerate. Made of high quality ABS plastic, this product is sturdy and durable.