Pond aerators and air pumps come in a variety of sizes. Each product describes what size of pond they're designed for. Be sure to read our 'How-To' Guide on choosing the right size of pond aerator.
For a complete pond aeration system, you have an air compressor, air tubing and an air diffuser. We sell these in parts or as complete pond aerators. Most people choose a diffused aeration system which aerates their pond from the bottom all the way up to the top - which is exactly what you want! For very shallow ponds that are big (like 1/2 acre or larger), you may need a high volume surface aerator instead.