The Dolphin Series offers flexibility in feed rates from 0.13 GPD to 97 GPD in order to meet the demands of the pool, spa or hot tub industry, and elsewhere. The Dolphin Series also features an exclusive quick-release, twist-off, clear polycarbonate, acid resistant head to withstand the harshest environment. The pump case is molded of a rugged, chemical-resistant ABS. Mounting pads and a built-in wall mounting bracket allow a choice of flat-surface or wall mounted installation. The thermal or impedance protected gearmotor is safe, quiet, and dependable. Gearmotors are available for 120V 60Hz or 240V 50/60Hz operation. A 10-minute solid-state electric current interrupter is a standard feature, built into every Dolphin series feed pump. The Dolphin series pumps have the ETL Listed Mark (Certified to UL standard 778 and CAN/CSA standard C222.2 No. 108) and the ETL Sanitation Mark (Certified to NSF Standard 50 for pools, spas, or hot tub systems).