TP-LINK TL-FC111B-20 10/100 Mbps WDM Media Converter - IEEE 802.3u 1550nm 20KM (Compatible with TL-FC111A-20)

TP-LINK TL-FC111B-20 10/100 Mbps WDM Media Converter - IEEE 802.3u 1550nm 20KM (Compatible with TL-FC111A-20)

Marsoni

M251S

$34.99

Get it in 3 business days with 1 day shipping. Friday, May 29

TP-LINK TL-FC111B-20 10/100 Mbps WDM Media Converter - IEEE 802.3u 1550nm 20KM (Compatible with TL-FC111A-20)TP Link TL FC111B 20 10 100 Mbps WDM Media Converter Complies with 802. 3u 10 100Base TX, 100Base FX standards Auto negotiation of Half Duplex Full Duplex transfer mode Adopts WDM technology, transmitting and receiving data on one single fibre Extends fibre distance up to 20km What This Product Does TL FC111A 20 is a 100M media converter, providing a 100M RJ 45 port and a 100M SC fiber port, which can convert between electrical and optical signals.

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Purchased yesterday and put bot cans in my gas tank. Very pleased with how it works. Had a code P0175 02 sensor bank 2. Thought I had to replace the sensors but looked into products and read the reviews of these can. Check engine light went off this morning. Drove it aggressively after I used the cans and they worked as advertised. Highly recommend.

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Reviewed in the United States on May 12, 2026

Verified Purchase

Dave sick

Whiting, US

★★★★★ 5

car performance improvement

I bought this to use in my 2021 chevrolet equinox when my check engine light came on with an exhaust issue. so far I believe it's working. I have noticed increased mileage and a little more "zip" in the engine.

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Reviewed in the United States on May 28, 2026

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JayJay

Port Orchard, US

★★★★★ 5

Works for us!

We use this regularly in my car. Seems to help keep sensors clear. My engine light comes on if I don’t add. We add it to gas tank. My husband says it’s because of poor quality (dirty) gas from other countries.

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Reviewed in the United States on May 22, 2026

Verified Purchase

Jeff Pesos

Battle Creek, US

★★★★★ 4

Works like a supplement

If you use it and see a difference, you will blame it on this cleaner, if not, you will say the product does not work. Exactly like your weight loss supplements! Who knows what this stuff does, but it may do something. Or maybe it does not.

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Reviewed in the United States on February 7, 2026

Verified Purchase

Michael Sliwinski

Port Orchard, US

★★★★★ 5

Used to clean an O2 sensor

Seems to have resolved an issue with a wavering idle for my 89 Mercedes 300e with 468,000 miles.

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Reviewed in the United States on March 27, 2026