How long is the spool of wire? What guage?

Ancor Part Number is: 121710Per their catalog this is 16 AWG, 2 Conductor wire100' in length

Is it necessary to run this through plastic conduit? I'm using this to wire lights under my pontoon boat.

If running this wire along side other wires, then extra protective conduit, although not mandatory, would be prudent. I would suggest using pre-made heat shrink connectors and heat shrink tubing over it for additional protection. It is like sawing wood, measure twice, cut once.

Is there a difference between round and flat?

I would think it is only the appearance wire diameter and quality should be the same

Is this legit? How is it so cheap?

What size you are looking We sell legit only

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Ancor Marine Grade Products 121710 Duplex Cable, 16/2 AWG (2 x 1mm2), Flat - 100ft,Black/Red

Product ID: 3497239

Details

Brand
Ancor
Color
Black/Red
Gauge
16.0
Material
Vinyl
Number of Cable Strands
Multiple

⚡600V premium insulation

🌀Ultra-flexible Type 3 stranding

🌊Saltwater & corrosion resistant

R2100

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚓ Power your marine adventures with cable that never quits!

MARINE GRADE DURABILITY - Exceeds UL 1426, ABYC & USCG standards for ultimate reliability on water.
CORROSION CHEMICAL SHIELD - Resists saltwater, battery acid, oil, gasoline, UV, and abrasion for long-lasting performance.
READY FOR PRO LEVEL PROJECTS - 100ft flat duplex cable in classic black/red, ideal for professional marine electrical setups.
VIBRATION RESISTANT STRANDING - Type 3 ultra-flexible tinned copper strands prevent fatigue and electrolysis damage.
EXTREME TEMPERATURE FLEXIBILITY - Stays pliable from -40°F to 105°C, perfect for any climate challenge.

Ancor’s 121710 Duplex Cable is a 100ft, 16/2 AWG flat marine-grade wire engineered for extreme durability and flexibility. Featuring ultra-flexible Type 3 tinned copper strands and premium vinyl insulation rated at 600 volts, it withstands harsh marine environments, extreme temperatures, and corrosive elements, surpassing UL 1426, ABYC, and US Coast Guard standards.

Specifications

ASIN	B000NV0BNM
Best Sellers Rank	#15,922 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #12 in Boat Electric Wire
Brand Name	Ancor
Color	Black/Red
Customer Reviews	4.8 4.8 out of 5 stars (515)
Gauge	16.0
Global Trade Identification Number	00091887123111
Included Components	Ancor 121710 Flat Duplex Cable - 16/2 (2x1mm), 100'
Item Type Name	Ancor 121710 Flat Duplex Cable - 16/2 (2x1mm), 100'
Item Weight	1.5 Pounds
Manufacturer	ANCOR
Material Type	Vinyl
Model	121710
Number Of Wires	2
Part Number	121710
Strands	Multiple
UPC	787463059461 091877123114 091887123111
Unit Count	1.0 Count
Voltage	600 Volts

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