Natural PVDF coupling fittings available for sale online manufactured by Nibco® and part of the Chemtrol® product line for high purity PVDF applications. Couplings are designed to fit over and connect various pipe lengths or fittings together, often permanently. Available natural PVDF coupling fittings come in either dual female socket or dual NPT threaded connections. They are made to schedule 80 thickness and available from 1/2" to 6" NPS diameter sizes. Chemtrol® natural PVDF couplings are light in weight, maintenance free and easy to install to yield a long lasting, reliable, leak proof plumbing system. They are manufactured using premium, virgin, additive free PVDF resin that produces a high quality, superior product. Natural PVDF couplings offer significant chemical resistance, a service temperature range up to 280F, and innate resistance against UV damage, nuclear radiation as well as microbial and fungal growth. They are tested and approved per ANSI / NSF 61, 51, 14 standards and FDA, USP Class 6 requirements for use with food grade materials, potable, ultra pure, deionized, demineralized and distilled water.