Polyester rear part of PLS box 54x54x13,5cm. range: Thalassa – product name: Thalassa PLS – device short name: PLS – device application: multi-purpose – product or component type: insulating modular rear – enclosure nominal height: 540 mm – enclosure nominal width: 540 mm – enclosure nominal depth: 135 mm – enclosure mounting: wall mounted – body type: one piece moulded – type of front cover: without.