The SP3000 dosing pump is an economical peristaltic pump for pumping small volumes of water. It is used with all bypass filters, such as calcium reactors, but also to top up evaporated water when combined with a kalkwasser stirrer.A further application is the automatic dosing of fertilizers and minerals. In freshwater aquariums, the iron fertilizer ferreal can be added daily. In coral reef aquariums, the addition of calcium and other additives can be automated using the SP 3000. capacity, fixed: 3 l/h (c. 0.8 gph)max head (pressure): (10 m, c. 30 ft) 1 bar, c. 14.5 psimotor: Synchronous 20 rpmpower consumption: 4.5 wattspump hose: Santoprene