The Zurn QickZone manifold is centered around its fully modular supply and return outlets. Its brass construction greatly reduces expansion and contraction difficulties associated with non-brass heating manifolds. It features reliable and easy-to-connect bayonet-style locking connectors, and can be assembled from two to 12 outlets. It has a maximum working temperature of 230¿F and a maximum working pressure of 150 psi. Zurn Plumbing Products Group. Circle 2.