Review on Stinger SPD5202 ANL Inline Fuse Holder - 4 Gauge Input and Output by John Bennett

You may be surprised at how difficult it is to find a quality 4 gauge AGM waterproof fuse holder. It really should be the best that meets these requirements. Other similar models accept 4-gauge to 0-gauge, but using 4-gauge wire leaves a big gap. My only issue is that it's not 100% waterproof. It keeps water out very effectively but can still be improved by changing the design and adding some rubber grommets. However, it fits perfectly under my hood in an area where there won't be much water at all. I just wish if it was advertised as waterproof it actually meant waterproof. This is still probably the best 4 gauge AGM holder available, despite being truly waterproof. It is very durable, works well, looks beautiful. It is not recommended to be used in places subject to heavy splashes or in marine environments. Otherwise an excellent product.