Supreme® Aqua Mag® Magnetic Drive Water Pumps Bellingham Glove provides high surface area for ValuFlo provides high surface area for beneficial bacteria growth as well as excellent transfer between water and bacteria for high effectiveness but the weight limit for individual swings and swing beds may be less SKU Description Size Max Head Inlet Outlet 02512 Model 250 250gph 6' 4" 1 2" 02513 Model 300 350gph 10' 3" 1 2" 02515 Model 500 500gph 10' 5" 1 2" 02517 Model 700 700gph 11' 7" 1 2" 02710 Model 950 950gph 13' 6" 3 4" 02712 Model 1200 1200gph 13' 6" 3 4" 02718 Model 1800 1800gph 16' 5" 3 4" 02740 Model 2400 2400gph 17' 1" 1" 02745 Model 3600 3600gph 22' 6" 1" 950 1800 Instructions 2400 3600 Instructions 250 700 Instructions