2002 HARTL 4'' X 8'' Screening Equipment. Manufacturer: Hartl. Used 2002 HARTL 4'' X 8''Double Deck Semi Portable Screening Plant Station, hydraulically driven, withan 4'' X 8'' Double Deck Vibrating Screen, (2) fold out stockpileconveyors, all on a semi portable fold up assembly. $18,500. Sylacauga, AL, USA. Click to Contact Seller.