All specs were taken from retail units: http://amzn.to/1UnieIE
Extended Fuel Range Video    • Honda EU2200i EU2000i extended Fuel r...  

Update: Finally someone has manufactured an affordable true 30 Amp parallel kit (around $60):http://amzn.to/2o5LWtB

KEEP YOUR HONDA FROM BEING STOLEN: http://amzn.to/2um7Eb0

To save time and hassle, I recommend buying the ( http://amzn.to/1Tav3H0 ) Honda parallel cable set and cutting it instead of buying the wire separately and banana plugs. It will save you $20 to do it the way I show, but it will just take a little more time.

Safety Banana Plug ends: (about $25 @ mouser)
565-6729-0 (black) 565-6729-2 (red)
6729-0 6729-2
Pomona Test Plugs & Test Jacks
R/A BANANA PLG BLK
US HTS: 8536698000 ECCN:EAR99 COO:US

You could also use these safety banana plugs: 125037 silvertronic
They are about $2.50 each and come in 5 colors.

Flexible 12 awg wire/cord is called "SO" wire or SOOW, SOEW, etc (about $4)

PUSH BUTTON CIRCUIT BREAKER 30A was purchased off($5) http://amzn.to/1Qi0bOX

Plastic outlet box/cover is from my local home improvement center.(about $1)

Cable holders are from my local home improvement center.(about $1)

RV plug adapter is (about $9) http://amzn.to/1Qi0ERb



Wire 3 HONDA generators together:
I assume you want to use this for your motorhome or trailer. You wire it the exact same way I did in the video, but use 3 sets of wires instead of 2 into the circuit breaker. Then from the circuit breaker you take a 2 lines off, one to each opposing side of the 50amp RV 120/240 plug. BUT this is not 240v compatible. This is strictly 50amps of 120V power. So if your plugging your RV into it you CAN NOT run appliances that use 240V like a dryer. You can run all your 120v appliances like dual AC units, fridge, tv's, microwave etc. On the 50 amp RV plug, the round is ground(green/bare), opposite that is the neutral(green) and the other two that are opposite each other share the 120v load(blacks)

You could also use this kit http://amzn.to/1TauRYp but you'll also need the adapter: http://amzn.to/1QhYUr9