


Shakespeare 20' Extension Cable Kit f/VHF, AIS, CB Antenna w/RG-8x 4078-20-ER
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Shakespeare 20' Extension Cable Kit f/VHF, AIS, CB Antenna w/RG-8x 4078-20-EROverview 4078 20 ER 20' Extension Cable Kit for VHF, AIS, CB Antenna with RG 8x & Easy Route FME Mini End The cable that connects your antenna to your radio can make or break signal quality literally. Shakespeare offers a range of coaxial cables tailored to the needs of marine communications, and to withstand the rigors of the boating environment. Features: 20' Length White
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.0 ★★★★★
Based on 695 reviews
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Product Reviews
★★★★★ 5
Do it mayne
Size: 9.5" x 10.9" x 2.1"
Good quality and fit but find it funny that the instructions with the air flow are on the side. I assume that would be facing out and was annoyed when I tried to close and it didn’t fit. Probably should have read the directions. Still would recommend
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Reviewed in the United States on March 8, 2026
★★★★★ 5
Perfect fit, durable and affordable
Size: 9.5" x 10.9" x 2.1"
Ordered this for our 2023 Honda civic. Great fit, durable and very affordable. Was so easy to pull old one out and replace new one. Will be ordering again.
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Reviewed in the United States on November 3, 2025
★★★★★ 5
Save money by installing yourself
Size: 9.5" x 10.9" x 2.1"
Good price and easy to install in a 2019 Honda CRV. Instructions can be found on YouTube. Much less expensive than having a service center install them.
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Reviewed in the United States on February 14, 2026
★★★★★ 4
Always fits and is easy to install
Size: 9.5" x 10.9" x 2.1"
We've bought these for years and they always fit and are easy to install. Easy to see when they are dirty and need to throw away. Embarrassed that we let the car dealership do it for so long. We set on six-month subscribe and save so that we know when to replace it - change it whenever it shows up!
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Reviewed in the United States on September 13, 2023
★★★★★ 5
Better than I expected.
Size: 9.5" x 10.9" x 2.1"
Fits perfectly. Easy to install. As good of quality as the original equipment filter.
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Reviewed in the United States on January 9, 2026