These plastic adapters are available with various connection types. PFA Push-to-Connect Fittings require no special tools to install. They are ideal for pneumatic or gas connections in applications that do not require flared connections. Parker® Compression Female Straight Adapters are made from virgin fluoropolymer materials to help provide the highest purity and highest temperature capability of most thermoplastic materials. They are suitable for high-purity lab and semiconductor applications, especially with aggressive liquids and in highly corrosive environments. Can be easily assembled without hand tools or heat.