Quick Coupling Foster Female | Best Fittings

Foster Female Quick Coupler – Connector for your HPA or PCP setup

This quick coupler from Best Fittings is a Foster-type female connector with 1/8" BSP thread. It is specifically designed for PCP air rifles and provides a secure connection between the fill hose and air rifle. The built-in fill speed safety prevents overpressure when filling from a high-pressure scuba tank.

Technology and application

This connector works with the Foster system, an industry standard for quick couplers in compressed air applications. The female version accepts Foster male connectors and features a 1/8" BSP thread for direct mounting on compatible air rifles. The integrated flow restrictor automatically regulates the fill speed, which is essential when filling from sources with 200-300 bar such as scuba tanks.

Ease of use and integration

This quick coupler screws directly onto the fill port of your PCP air rifle. The Foster system allows for quick connection and disconnection without tools. The coupler is fully compatible with air rifles from Benjamin, Crosman, and Daystate that use the same thread size. To connect, you need a fill hose with a Foster male connector on the other end.

Who is this connector intended for?

PCP shooters who want to fill their air rifle from a scuba tank or compressor will find the right solution here. Also suitable for users looking to upgrade their existing fill set with a safer connector. The fill speed safety makes this connector ideal for beginners who want to fill directly from a high-pressure source without risking damage to their air rifle.

Ready to add the Foster Female Quick Coupler to your setup?