• High capacity field serviceable automatic air vent has built-in check valve Garden host thread clean-out valve Union-style connections Compact insulation jacket Uses legend connect system 1/4 turn drain valve with GHT and tethered cap

The HS-808 allows for a simple, efficient and economical method of "hydraulic" separation in hydronic systems. Enjoy all the benefits of "primary/secondary" system piping, eliminate circuit to circuit (zone distribution) and circuit to heating or cooling source flow (hydraulic) interference and simplify system design and analysis, without the complicated and costly "close spaced tees" piping. Additional benefits of the HS-808 include system air removal via the included automatic high capacity air vent and debris collection and removal via the included purge valve. All sizes feature union connections for ease of installation and maintenance. Attractive, compact and form fitting insulation is provided with each unit. The HS-808 simplifies system piping for easier installation, design and analysis. In many cases eliminating the need for a "primary" circulator and the installation, plus operating costs associated with it.