Reddit reviews Remington Industries 20UL1007STRKIT10COLOR100 20 AWG Gauge Stranded Hook Up Wire Kit, 100 feet Length Each, 10 Colors, 0.0320" Diameter, UL1007, 300 Volts
We found 1 Reddit comments about Remington Industries 20UL1007STRKIT10COLOR100 20 AWG Gauge Stranded Hook Up Wire Kit, 100 feet Length Each, 10 Colors, 0.0320" Diameter, UL1007, 300 Volts. Here are the top ones, ranked by their Reddit score.
Voltage rating: 300 voltsType: Ul1007 stranded wire (7/28)Insulation: pvc (0.016 inchColor: Black, Blue, Brown, Gray, Green, Orange, Red, Violet, White & Yellow
If you want >500 ft of a single color try Automationdirect.com
Search for "mtw" (machine tool wire) and your desired awg
Free 2 day shipping for any orders over $50
If you're looking for more color variety in smaller quantities I purchased this 10- color 20 awg hookup wire set (100'/ color) at what seemed to me to be a good price:
https://www.amazon.com/Remington-Industries-20UL1007STRKIT10COLOR100-Stranded-Diameter/dp/B01F5OHQCA/ref=mp_s_a_1_3?ie=UTF8&qid=1524874461&sr=8-3&pi=AC_SX236_SY340_FMwebp_QL65&keywords=remington+10+color+20+awg&dpPl=1&dpID=41qZpAc0yoL&ref=plSrch
(As a heads up there is an option on amazon prime for a nearly identical set for $50 but that one is only 25'/ color)