Xirtec CPVC high-performance vinyl systems are an excellent alternative to common and exotic metal chemical-waste systems. They feature a superior temperature range and resistance to photodegradation, creep stress and oxidation, making them ideal for chemical and industrial applications with the use of acids, alcohols, salts and halogens. The Xirtec CPVC system offers a wide variety of fittings available in Schedule 80 thickness. Schedule 80 components are ideal for high-pressure applications, specifically industrial and chemical. These Cap FPT fittings come in 1/4", 3/8", 1/2", 3/4", 1", 1-1/4", 1-1/2", 2", 2-1/2", 3" and 4" sizes. NSF listed.