3.5mm Bulkhead Female to 3.5mm Female Precision Adapter PN: P-3.5F-3.5F-306
3.5mm Female to 3.5mm Female Precision Adapter, 4 Hole Flange PN: P-3.5F-3.5F-284
3.5mm Waterproof Bulkhead Female to 3.5mm Female Precision Adapter PN: P-3.5F-3.5F-255
3.5mm Bulkhead Female to 3.5mm Female Precision Adapter, 4 Hole Flange PN: P-3.5F-3.5F-195
3.5mm Female to 3.5mm Female Precision Adapter PN: P-3.5F-3.5F-192