The 1-EUAA-MD is a highly efficient wet motor aquarium pump. Its volute and magnet housing is glass-filled polypropylene for excellent chemical resistance. The impeller is glass-filled polypropylene and ceramagnet “A” (barium ferrite). The shaft is ceramic and thrust washers are Rulon “J” (Teflon®) for excellent wear and trouble-free service. Pumping heads are easily rotated, cleaned, or serviced with no special tools. The spindle shaft is supported at both ends to prevent impeller damage during the start and stop of the pump.