Cliplight Super Seal Advanced 948KIT - Permanently Seals & Prevents Leaks in Commercial A/C & Refrigeration Systems 5+ Tons MADE IN USA - America's Most Trusted AC/R Stop Leak. Super Seal ADVANCED with DRY R - 2 in 1 product. 5+ TONS - permanently seals & prevents leaks in all air conditioning and refrigeration systems DRY R eliminates moisture & increases system efficiency. Professional HVACR use - compatible with all oils & refrigerants, hose included.