Pond pumps are available in both submersible (in water) and external (out of water) models. Submersible pond pumps are placed directly into the pond and require very little installation. 4 Pumps has a comprehensive range of quality pond pumps that cater for all your pond requirements. 4 Pumps offers a 7 day replacement guarantee on our entire product range. Not sure which pump you need? Call our friendly technicians today.