GE CST2 Cold-Shot Pipe Freeze Kit SmallMaintain Pressurized Systems During Pipe Repairs Introducing the General Wire Cold Shot Pipe Freeze Kit. A fast and effective solution for freezing liquids in pipes, allowing for quick and easy repairs without draining the system. Specifications: Brand: GE (General Wire) Model: CST2 Type: Pipe Freeze Kit Pipe Material Compatibility: Steel, Copper, Cast Iron, Aluminum, Plastic Pipe Size Range: 1 8" to 2" (10 mm 60 mm)