T88-PK(J), Sliding 2.5 Track Frame (88×52). Is used for a sliding window/door frame system.

Sliding 2.5 Track
• Refers to the 88 mm series/profile system
• PK → Premium / reinforced / knock-down variant
• 2.5 track = hybrid system
• 2 main tracks → for glass shutters
• Material: uPVC / Aluminium
• Supports mesh + glass together