Vertex Alpha protein skimmers are produced by the same factory in Germany that makes the Bubble King Mini and Bubble King Supermarin protein skimmers. The Vertex Alpha protein skimmers have excellent build quality but at a lower price point than the Bubble King. All the Vertex Alphas are BRS Recommended. As always, we suggest determining the amount you can spend, the amount of space you have and then purchase the best performing skimmer. All Vertex Alpha Protein Skimmers ship for free from bulkreefsupply.com.