StoreDeal.ai store
Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • Use in AI assistants
  • Contact
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.·2222 Ponce de Leon Blvd, Miami, FL 33134·support@deal.ai
TermsPrivacy
Deal.ai › Cobra
Cobra
Cobra 10/2 Duplex Wire 100 Foot Roll, B7W10T-21-100

Cobra 10/2 Duplex Wire 100 Foot Roll, B7W10T-21-100

Best price now

$137.29at Marine Parts SourceChecked Nov 2

Prices are checked against each store and labelled with when.

Visit Marine Parts Source
Cobra discount code →

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

Price facts

  • Last seen at $137.29 at Marine Parts Source on Nov 2.

Our take on the Cobra 10/2 Duplex Wire 100 Foot Roll, B7W10T-21-100

This is a 100-foot roll of 10 AWG two-conductor marine wire: red and black tinned-copper conductors in a flat white PVC jacket. The Class K fine stranding keeps it very flexible for routing through tight runs, and the tinned copper resists the corrosion and wicking that plain copper suffers in damp DC wiring. The flame-retardant jacket is rated to shrug off moisture, abrasion, acid, diesel and oil. It suits boat owners running heavier 12V and 24V circuits, where its flexibility and corrosion resistance are the main draw over stiffer, untinned wire.

Best forBoat owners wiring 12V or 24V DC circuitsRuns needing a flexible, easy-to-route cableDamp or fuel-exposed marine installationsReplacing corroded or stiff duplex wire
Pros
  • Tinned Class K copper resists oxidation and wicking
  • Very flexible for tight routing
  • Flat white jacket stays tidy along hulls and panels
  • Jacket resists moisture, abrasion, acid, diesel and oil
  • Two conductors in one jacket simplify DC runs
Cons
  • 10 AWG is heavier than small accessory circuits need
  • Flat duplex jacket is less round than some cable clamps expect
  • 100-foot roll may leave excess on short runs

Cobra 10/2 Duplex Wire 100 Foot Roll, B7W10T-21-100 prices at every store

  • Marine Parts SourceNew

    Availability unknown

    $137.29Checked Nov 2
    Visit Marine Parts Source

Cobra 10/2 Duplex Wire 100 Foot Roll, B7W10T-21-100 price history

Lowest price we've seen: $137.29 on Nov 3 at Marine Parts Source. Tracked across 1 store since Nov 3.

From Marine Parts Source

  • 10/2 duplex marine wire, 100 foot roll
  • 10 gauge wire size
  • Black and red wires in a flat white outer jacket
  • Flame retardant PVC jacket resists moisture, abrasion, acid, diesel fuel and oil
  • Finely stranded Class K tin coated copper resists corrosion from oxidation and wicking
  • Extremely flexible cable for easy routing
Materials
Finely stranded Class K tin coated copper conductors; flame retardant polyvinyl chloride jacket

About the Cobra 10/2 Duplex Wire 100 Foot Roll, B7W10T-21-100

This is a 100-foot roll of 10/2 duplex marine wire. It has two 10 AWG conductors, one black and one red, in a flat white outer jacket. It is primarily used for marine DC electrical connections.

The conductors are finely stranded Class K tin-coated copper, which resists corrosion from oxidation and wicking. The flame-retardant PVC jacket resists moisture, abrasion, acid, diesel fuel and oil. The cable is very flexible, so it is easy to route.

Model
B7W10T-21-100
Wire gauge
10 AWG, 2 conductors (10/2)
Length
100 ft. roll
Conductors
Finely stranded Class K tin-coated copper
Conductor colors
Black and red
Jacket
Flame-retardant PVC, flat white
Jacket resistance
Moisture, abrasion, acid, diesel fuel and oil
Use
Marine DC electrical connections

Specifications

Wire Gauge
10 gauge

Questions and answers

What is 10/2 duplex wire used for?
It carries two conductors, one red and one black, for DC positive and negative runs. At 10 AWG it handles heavier 12V and 24V circuits such as feeds to panels, pumps and chargers.
Why tinned copper instead of plain copper?
The tin coating protects the strands from oxidation and stops corrosion from wicking up the wire in damp marine settings. Plain copper strands corrode faster in the same conditions.
Is the jacket safe around fuel and oil?
The flame-retardant PVC jacket is described as resisting moisture, abrasion, acid, diesel fuel and oil, which suits engine rooms and bilge areas.
How flexible is it to route?
The finely stranded Class K conductors make it extremely flexible, so it bends around tight corners and through conduits more easily than stiff building wire.
What is in the roll?
One 100-foot roll of 10 AWG two-conductor wire with red and black conductors in a flat white outer jacket.
Where is the Cobra 10/2 Duplex Wire 100 Foot Roll, B7W10T-21-100 cheapest?
At Marine Parts Source, for $137.29, as of our latest check.

More from Cobra

  • C
    Cobra 10/2 Duplex Wire 1000 Foot Roll
    Cobra 10/2 Duplex Wire 1000 Foot Roll
  • C
    COBRA 8/2 Flat Tinned Wire Red-Yellow/White Jacket (100/Reel)
    COBRA 8/2 Flat Tinned Wire Red-Yellow/White Jacket (100/Reel)
  • C
    Cobra Golf Crown Rolling Club Travel Bag
    Cobra Golf Crown Rolling Club Travel Bag
  • C
    Cobra SC 220C Dash Cam
    Cobra SC 220C Dash Cam
  • C
    Cobra Fly XL Complete Set (Left-Handed)
    Cobra Fly XL Complete Set (Left-Handed)
  • C
    Cobra Fly-XL Complete Set
    Cobra Fly-XL Complete Set
  • C
    Cobra Air-X Driver
    Cobra Air-X Driver
  • C
    Cobra DS-Adapt MAX 9 Iron
    Cobra DS-Adapt MAX 9 Iron
  • All Cobra deals and products →