PV Combiner Box, 4 String Metal Solar Combiner Box with 15A Rated Current Fuse, Surge Protective Device and 50A Air Circuit Breaker for On/Off Grid Solar Panel System, Pre-Wired Cable

The PowGrow PV Combiner Box is very well-made and durable. I always look for features such as ample inner spacing for components and connections. These are more expensive but also easier to maintain/or upgrade. They allow for better heat dissipation. Metal is just my personal choice, although some of the PEP types are quality units but just not as good as the steel especially when it comes to a truly solid surface mount. PowGrow has weather strip, tight closure with robust latch and hinges.

Well built combiner box but I still have to install and see if it works

Works like advertised

Very sturdy and much nicer than the plastic boxes out there. Box is large enough to bring in a 1" conduit, no problem.

Updating my review - after reaching out to the seller for help, he suggested linking my panels in series and running all 6 through 1 port and my voltage shot up as expected. Definitely appreciate the support and follow up from the seller. The boxes are built well with quality components, just understand that these units will parallel all panels so if you need higher voltages to trigger your charge controller you can get by with the 4 port box, as you will need to link the panels in series --- I bought 2 of these powgrow 6x panel combiner, unfortunately neither one works properly. I have all panels volt tested at the cable input, but the boxes do not combine the voltage, I just get a little 19V out of the breaker. If I shut the breaker off I can see 67V but as soon as I flip the breaker on it drops to a universal 19V. My 2nd box is the exact same way, it's like it picks 1 input then uses that as the voltage output and does not combine the power output.