Matala Geyser Max-Flow Pumps are excellent, vertically-oriented submersible pumps specially designed with a composite resin base for high performance and low amps. These pond pumps can be placed directly into the pond, requiring little installation. They noise-free pumps can even be hidden inside pond skimmers. Additional Features: High performance with low amperage Composite resin base and corrosion-resistant body 19' power cord 2 Year Warranty Model Max Flow Max Head HP Amp Outlet Dimensions Wt GM-3200 3200gph 15.7' 1/5 2.5 1.5" 9.4" x 6.5" x 14" 15.4lb GM-3900 3900gph 22.5' 1/4 3.3 1.5" 9.4" x 6.5" x 14" 15.4lb GM-4700 4700gph 27.5' 1/3 4.0 2" 9.4" x 6.5" x 14" 15.4lb GM-5400 5400gph 32.8' 1/2 5.2 2" 9.4" x 6.5" x 14.8" 17.6lb GM-6200 6200gph 41' 3/4 7.3 2" 9.4" x 6.5" x 15.4" 19.8lb Specifications Manual