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Deal.ai › Roadpro › Cables
RoadPro
RoadPro 12' cb antenna co-phase coax

RoadPro 12' cb antenna co-phase coax

Best price now

$16.92at The Home DepotChecked 1 h ago

Compared across 3 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.

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Price facts

  • Lowest price today: $16.92 at The Home Depot (checked Nov 10, 2026).
  • Checked at 3 stores.

Our take on the RoadPro 12' cb antenna co-phase coax

The RoadPro 12-foot co-phase coax is a twin-lead antenna cable set for CB radios, meant to feed two antennas from one radio in a co-phase setup. Each leg is 12 feet, the cable is shielded, and the ends are terminated for CB antenna and radio connections. It suits drivers and hobbyists running dual antennas on a truck or big rig who want a ready-made harness instead of building one. Compared with generic single runs, it saves the work of matching two lengths, but the fixed 12-foot legs limit where you can mount the antennas.

Best forDual-antenna CB setups on trucks and big rigsDrivers who want a pre-terminated co-phase harnessReplacing a damaged twin-lead run
Pros
  • Two matched 12-foot legs for a co-phase dual-antenna setup
  • Shielded cable to limit interference pickup
  • Terminated ends ready to connect to radio and antennas
  • Black jacket blends with cab and mirror wiring
Cons
  • Fixed 12-foot legs may be too short or too long for some cab layouts
  • Co-phase harness only suits dual-antenna installs
  • Thin coax can be fragile at tight bends
  • No angled connectors, so routing near tight panels is harder

RoadPro 12' cb antenna co-phase coax prices at every store

  • The Home DepotNew

    In stock

    $16.92Checked 1 h ago
    Visit The Home Depot
  • WalmartNew

    In stock

    $16.92+ $6.99 shippingChecked 1 h ago
    Visit Walmart
  • Tractor Supply CoNew

    In stock

    $17.09+ $13.99 shippingChecked 1 h ago
    Visit Tractor Supply Co

Store links may earn us a commission. Some prices via Klarna.

RoadPro 12' cb antenna co-phase coax price history

Lowest price we've seen: $16.92 on Nov 10 at The Home Depot. Tracked across 3 stores since Nov 10.

Specifications

Shielded
YesSource
Color
Black, MulticolorSource
Type of Cable
Antenna Cable, Cable AdapterSource
Length (ft)
12.0Source

Questions and answers

What is a co-phase coax used for?
It feeds two CB antennas from one radio so the pair works as a single directional array. The two legs must be the same length, which this set already is.
Will 12-foot legs reach both mirrors on my truck?
Measure the route from the radio to each mirror before buying. Twelve feet per leg covers many cab-and-mirror runs, but long hoods or rear mounts may need extensions.
Does it work with any CB radio?
It fits CB radios with a standard antenna jack and antennas with matching studs. Check that your radio and mounts use the same connector type as the cable ends.
Can I use just one leg for a single antenna?
It is built as a pair, so using one leg leaves the other unused. For a single antenna, a standard single coax run is simpler.
Is the cable shielded?
Yes, the coax is shielded, which helps keep ignition and electrical noise out of the receive path.
Where is the RoadPro 12' cb antenna co-phase coax cheapest?
At The Home Depot, for $16.92, as of our latest check.
Where can I buy the RoadPro 12' cb antenna co-phase coax?
3 stores we checked sell it, including The Home Depot, Walmart, Tractor Supply Co.

Stores we've priced the RoadPro 12' cb antenna co-phase coax at

  • Home Depot deals and prices
  • Walmart deals and prices