Excellent working condition, serviced and very clean. Heavy duty hydraulic water and trash pump by Stanley. Model SM23-B, serial 4375, 2 1/2 inches pipe discharge. Includes 2 Aeroquip FD49 series 1/2 inch quick couplers (in and out flow) installed on 2 Aeroquip Hi-Implulse 2781-8 tubes (total length 26 inches each). Specifications: Runs dry without damage, integral motor, 1000-2000 psi pressure, 375 gpm capacity, 8-15 gpm flow range and -8 SAE O-ring porting. Acquired from Canada National Defense.