![John Guest® Wall Box 3 x 3/4"BSP Connection [CAS34WB]](https://www.toolpointsolutions.com/wp-content/uploads/2026/09/CAS34WB_DFC1162729__68894.1720585584.webp)
Description
• COMPREHENSIVE – One of a comprehensive range of high-quality components for the John Guest® Air Supply Ring Main System.
• QUICK – Install your own workshop compressed air ring main quickly, easily, and competitively with the CAS system of fast fit compressed air fittings.
• VERSATILE – Can also be used for water movement not meant for human consumption.
• MULTI-OUTPUT – Up to three 3/4″ outputs for connecting air lines or cable reels, enhancing system adaptability.
• SECURE CONNECTION – 3/4″ Female thread ensures a tight, reliable seal for air or water applications.
![John Guest® Wall Box 3 x 3/4"BSP Connection [CAS34WB]](https://www.toolpointsolutions.com/wp-content/uploads/2026/09/CAS34WB_DFC1162729__68894.1720585584-324x324.webp)