EcoPlus Adjustable Flow Water Pump, 291 GPH Drip Irrigation What does this all mean

What does this all mean

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Filter Materials Housing: polypropylene

S4 Spectrum

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EcoPlus Adjustable Flow Water Pump, 291 GPH Drip Irrigation What does this all meanAdjustable Flow Water Pumps from EcoPlus This line of adjustable water pumps offer an energy efficient magnetic ferrite rotor with a ceramic shaft, vastly improving GPH and head pressure that is needed in hydroponic systems, fountains and more. These pumps are manufactured with a built in flow regulator allowing full adjustability of your water movement. Included with each pump are three sizes of fittings that easily attach to the outside threaded