sand filter make/model

hello all. i recently purchaced a house with an above ground pool. i just opened up my pool this past weekend and got the filter running and got the water clear after it being swampy green. anyway i was wondering if anyone can possibly tell me what the make is of this sand filter. it has no decals on it anywhere. the only thing that has names on it is the multiport valve which is praher on top and cooper on the bottom. the motor is emmerson. the tank is black with a blue line around the middle of the tank.

thanks Dean.