300A Bus Bar 12V Heavy Duty Module Design Power Distribution Block Waterproof Bus bar Box with 4X M8(5/16") Terminal Studs for Battery Marine Automotive RV Car Truck (Black & Red)

These worked great for my electrical upgrade on my RV. Add solar panels and controllers. Needed more posts. Quality is great. And the price was right.

It’s perfect and just right.

I own a jeep TJ, so I have upgraded it over the years and my battery was at its limit for attachments. I installed these (power and ground) and feel much better about the connections. It looks good, makes me feel safer, and works as expected. These are well built, although not waterproof, can easily have openings sealed to make it so.

Great quality and looks good. I would definitely buy it again if needed.

A GREAT LITTLE BUSS BAR, BUT ONLY BECAUSE IT'S COVERED, THE BUSS BAR TERMINALS ARE TOO LARGE AT 5/16" SHOULD BE A 1/4X20" OTHER THAN THAT IT JUST O.K.

I liked the terminal cover, couldn't find another style in this amp rating with as nice of a cover. The cons are the bus bar is made of brass, instead of copper, and I would not mount this to metal, as the base plate is thin, and there are screw coming from the backside to mount the bus bar to the base plate. Very little distance from the mounting screws to the mounting surface. I'll be mounting it on a non conductive surface

I put these on my camper as an upgrade and they have worked great ever since. Only downfall is the plastic does fade in the Sun but grab a can of paint.

Great quality

I bought these blocks when I was installing my inverter into my travel trailer to help organize and keep a clean look to my install and these did just that. the quality of the plastic and metal is top notch and they look so good. I'll have to get some photos of my inverter system install attached to this review in the future. but until then, take my word for it. These are nice. Highly recommend.

No complaints as it does exactly what its supposed to do. Its been in my truck for a couple of months and no issues with any of the devices connected to it.

No issues with a 4 k inverter and 600 amp hour lithium batteries

I am very impressed with how strong and stout the materials are and the thickness of the base plate. Highly recommends for setting up a multi piece lithium battery with inverter charger & solar type project. Thanks !

Fairly fast shipping (from China!) with decent tracking. I was amazed by the quality of this product. Not the cheap junk I expected. The plastic was thick, reinforced, and strong, the bus bar was very thick and the studs seem like quality stainless with lock washer. The cut-outs for the cables are well defined yet strong and ideally cut out using a rotary tool like a Dremel. The mounting studs for the bus bar are counter-sunk into the plastic housing and covered with a foam pad. Even if the bar heats up and melts the foam it shouldn't make contact with any metal the plastic housing is mounted to; a nice bit of safe engineering. Highly recommended.