The 1 in. Male Adapter connects your 1 in. female thread zone valves to Action’s Heavy-Duty Manifold. Action’s heavy-duty manifold systems are constructed out of thick schedule 80 PVC, o-ring sealed for tool-less installation and fully unionized. Never cut your system apart again to change a junk valve. With our wide range of manifolds and adapters, you’ll have you system up and running in no time.