The large-capacity HDPE reservoir adds an integrated handle, making heavy reagent carrying easier and more stable. The thickened dual-layer body with a PTFE gasket provides durable liquid retention and permeation protection. Processed entirely under dust-free clean conditions with strict particle and metal leaching control, it preserves the original purity of electronic chemicals and high-purity solvents. The pigmented outer resin blocks light, suited to photosensitive photoresist storage — ideal for batch laboratory dispensing and short-to-medium distance workshop transfer, with custom bottle colours available on request.