| Number of Outlets: | 7 |
|---|---|
| PEX Size: | 1/2" |
| Supply Size: | 1" |
| Supply Connection: | BSP |
| Loop Thread: | EK20 |
| Material: | Stainless Steel |
| Application: | Heating |
| Fitting System Compatibility: | PEX Compression |
| Tubing Compatibility: | PEX |

The flow meters are on the supply half of the manifold (the red half).
Yes, they do.
Yes, the supply/return shutoff valves come with temperature wells.
Yes, but we wouldn't recommend going higher than 100 psi.
You can open the flow meters more by following the instructions at the bottom right of the Installation Guide linked below. http://s3.pexsupply.com/manuals/1323280667775/69249_PROD_FILE.pdf
The RHM03 manifold works with 1/2" PEX or 1/2" PEX-AL-PEX. MA-50P fittings are used to connect 1/2" PEX, and MA-50PAP are used with 1/2" PEX-AL-PEX.
Rifeng radiant heat manifolds are made in China.
Rifeng is a Chinese company with headquarters in China so I would assume this, and most (if not all) of its products are also made in China.
No, the actuators are optional.
You only need to use actuators if you want to have multiple zones on one manifold.
This manifold can handle the water pressure of a domestic system, but it is not NSF approved.
It would be approximately 20 GPM.