AMT 285F-95 1 1/4" Self-Priming Centrifugal Pump, Maximum Working Pressure 75 PSI, Buna-N Mechanical Seal, Shaft Seal in Stainless Steel. The AMT Self-Priming Cast Iron Centrifugal Pump are designed for circulating, boosting, washdown, liquid transfer and dewatering applications. Dual volute design reduces radial load on motor. The centerline discharge feature is specifically designed to prevent vapor binding and makes for convenient piping connections. All models are fitted with self-cleaning, semi-open impeller. The units will selfprime to 20 feet. Mounting base features 7/16" mounting holes, which are 6" OC (on center). Built-in carrying handle offers portability. Cast Iron Construction; Buna-N Mechanical Seal and O-Ring with optional Viton or Silicon Carbide Mechanical Seal and O-ring; 1 1/4" NPT Suction and Discharge Ports; Dual Volute Design Reduces Radial Load on Motor; Maximum Working Pressure 75 PSI; Maximum Temperature 180 F; Single or Three Phase, ODP or TEFC Motors Available; Self-cleaning, Semi-open Impeller. NOTE: Dimensions are in inches and have a tolerance of +/- 1/4". NOTE: Electric supply for ALL motors must be within +/-10% of nameplate voltage rating (e.g. 230V +/-10%= 207 to 253).