Stellar Air Pumps by Tom

Maximum air output Maximum efficiency A full range of technically advanced air pumps to fulfill most aquarium air requirements. These "silent" running air pumps will provide many years of trouble-free operation. Five sizes available * Silent * Powerful * Long Life *Stellar Pumps are warrantied against defects in workmanship and materials for one year. Full warranty printed on box. The S-10 is for up to 10 gal. -12(GPH) Air Volume, 2.13(PSI) The S-20 is for up to 15gal.-22(GPH) Air Volume, 2.90(PSI) The S-30 is for up to 20 gal.-32(GPH) Air Volume, 3.10(PSI) The W-40 is for up to 30 gal.-22x2(GPH) Air Volume, 2.90(PSI) The W-60 is for up to 40 gal.-32x2(GPH) Air Volume, 3.10(PSI) *All the STELLAR models are 115(V) and 60(Hz)