WesTech GAC contactors can be supplied in an open-top gravity system or, more commonly, in pressure vessels. They are typically designed with a conical underdrain for convenient GAC replacement.
By contrast, the HomePod is essentially an extension of the iPhone, like an accessory. When someone asks the HomePod to open a third-party app, the request wonât go directly to the cloud, as with the Echo, but to an iPhone. As a result, developers can't write apps for the HomePod. They must create tweaked versions of existing iPhone apps.
Now Apple finally has a way to get Siri out of your phone and into your family room. But it's more than that, at least if you believe Apple's Phil Schiller. At WWDC, Schiller announced the new HomePod speaker, which is designed to take on Sonos, Amazon, and Google all at once. The round, mesh device is seven inches tall, almost as big around as the Mac Pro, and has seven tweeters and an Apple A8 chip that Apple says make it sound better than your average smart speaker.