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Ships within 48 hours · Estimated delivery Sep 21 - Sep 26
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Description
Poly-Planar MB-21 8 Watt VHF Extension Speaker - Black [MB21B]MB 21 8 Watt VHF Extension Speaker Black This compact marine communications speaker includes a stainless steel mounting bracket and stainless steel grill. These waterproof communication speakers can be mounted where you can hear your VHF radio. Features: Completely waterproof and corrosion proof Features stainless steel grills, sturdy plastic frames, polypropylene speaker cones and Teflon coated wires 10' Lead wire w mini plug and RCA adapter
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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Best in 7 days
4.8 ★★★★★
Based on 771 reviews
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Product Reviews
★★★★★ 5
Great fit and quality
Size: AF113
Not a complicated product, but after going to 2 different auto parts stores and this not being in stock, Amazon to the rescue. Arrived the next day and the quality is definitely on par with “store brand” ones from retailers. Definitely cheaper as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
★★★★★ 5
Fit my 2014 Accord perfectly
Size: AF476
Seems to be the same quality as OEM. Fit perfectly. Easy to install.
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Reviewed in the United States on April 24, 2026
★★★★★ 4
Affordable priced. Fits well
Size: AF377
They work good in my 2019 Toyota RAV4
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Reviewed in the United States on May 11, 2026
★★★★★ 5
Perfect fit, slid right into place and locked like it should
Size: AF943
Wanting to correct my previous review (I reviewed the incorrect item). This product fit perfectly in my vehicle- my apologies for the first review; perhaps Amazon or the vendor can replace the first review with this one. I am very pleased with this item.
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Great filter
Size: AF741
Fit out Toyota Prius V 2014 perfect. Well made too.
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Reviewed in the United States on May 26, 2026
