GF PipingGF Piping Systems’ Double-See is an improved pressure-rated double containment system for transporting hazardous liquids. The system offers a simplified installation method, a patented closure coupling design that allows conformance to the ASME B31.3 test inspection requirements, and a 3D thermal expansion compensation feature. With the Double-See system, both primary and secondary pipes are cut to the same length and can be joined simultaneously. This is intended to save time and prevent potential mistakes caused by staggered pipe-cut measurement errors. Double-See is available in PVC and CPVC; either material may be primary or secondary (PVC × PVC, CPVC × PVC, CPVC × CPVC) with Clear PVC always being an option for the containment pipe. System size options range from ½ inch by 2 inches to 6 inches by 10 inches. The piping systems are a good fit for applications including water & wastewater treatment, chemical delivery, dosing and processing, microelectronics, life sciences, metal working/finishing, waste collection, and more. –