Amazon.com: Super Antenna ER1B Extension Rod 3/8-24
The model ER1B Extension Rod 3/8'-24 with Coupling Nut. It is a 12 inch long metal Extension Rod with 3/8'-24 male threads on both ends. Includes the 3/8'-24 Coupling Nut (female-to-female). Increases the performance of MP1 series Super Antennas. Several ER1B Extension Rods can be stacked by screwing them together for added height and gain as a ...
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