A pump for all the right reasons! Great for water return from a wet/dry sump or for powering a protein skimmer! Nine superior attributes:1) powerful magnetic drive. 2) only one moving part. 3) low maintenance. 4) no oiling necessary. 5) no seals to replace. 6) very energy efficient. 7) easy-to-clean pre-filter. 8) high flow pressure. 9) for fresh or salt water…in-line or submersed.