Protein Skimmer Pump 4 - 8

Cobalt - Protein Skimmer Pump 4-8. Cobalt Protein Skimmer pumps are high quality Italian made replacement pumps for your skimmer. Each model features a venturi and matched needle wheel impeller designed together to maximize water and air mixture and ensure optimal bubble size. The 4-8 model features 1/2" Female threaded NPT fittings and a 300gph flow rate. The 12-16 model features 3/4" Female threaded NTP fittings and a 575gph flow rate.