The 3" 316 Stainless Steel Cap - SP114 is a high-performance MSS Class 150 end cap designed for corrosion-resistant applications in plumbing, marine, and industrial systems. Constructed from durable 316 stainless steel, it provides excellent resistance to rust, pitting, and chemical exposure, while ASME B1.20.1 NPT threads ensure compatibility with standard piping. Engineered to seal pipe ends securely, it prevents ingress of debris or moisture, maintains cleanliness in unused branches, and withstands high-pressure conditions up to 150 PSIG. Optimized for industrial piping, this cap delivers reliable, long-lasting performance for professionals seeking compliance with ASME B31 codes and dependable fittings. Order now for fast shipping and professional-grade results.