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.
• CONNECTIVITY – Converts pipe end to male thread.
• DURABLE – Brass Straight Adaptor Ø15mm x 1/2″BSPT.

![John Guest® Brass Straight Adaptor 15mm x 1/2"BSPT [CAS15BSA]](https://www.toolpointsolutions.com/wp-content/uploads/2026/09/CAS15BSA_DFC1880571__98349.1744016110.webp)
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![John Guest® Brass Straight Adaptor 15mm x 1/2"BSPT [CAS15BSA] - Image 5](https://www.toolpointsolutions.com/wp-content/uploads/2026/09/CAS15BSA_PIC4_DFC1880579__51458.1744016415.webp)
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