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SPT521 Gauge Reducer Adapter. For situations when a 1/0 gauge power cable cannot be put directly into your amplifier, the Stinger SPT521 is the best option. The black and red rubber rings are both included in the 1/0 to 4 gauge reducer, which can be used for positive or negative connections.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.