Even though these have the pex fittings are they also threaded 3/4 fnpt in the inside ends of the valve ?

So the valve itself has male NPT threads on both sides and the pex adapters come with female NPT threads that thread into the males with gasket seals inside. Does this make sense ? I could attach an installation video if that helps. Thanks for reaching out.

Is this oem Zurn and not a knockoff?

As far as I can tell, it's a genuine Zurn. Of course, anything can be counterfeited, but it's identical to the one my plumber installed a year ago that's right next to it (I'm using both for different branches). Same numbers and markings in the casting, same tag hanging off the adjustment bolt.

Material	Bronze
Brand	Zurn
Item dimensions L x W x H	81 x 8.5 x 3.75 inches
Exterior Finish	Stainless Steel,Copper
Inlet Connection Size	0.75 Inches
Inlet Connection Type	Barb
Outlet Connection Type	FNPT
Maximum Operating Pressure	75 Pound per Square Inch
Number of Ports	2
Outlet Connection Size	0.75 Inches
Valve Type	Ball Valve
Global Trade Identification Number	00612052201665
Manufacturer	Zurn Industries
UPC	612052201665
Part Number	34-NR3XLDUPEX
Item Weight	2.14 pounds
Product Dimensions	81 x 8.5 x 3.75 inches
Country of Origin	China
Item model number	34-NR3XLDUPEX
Color	Bronze
Style	Valve
Item Package Quantity	1
Measurement System	US
Included Components	34-NR3XLDUPEX
Batteries Included?	No
Batteries Required?	No

Wilkins 34-NR3XLDUPEX 3/4" NR3XL Pressure Reducing Valve with Double Union PEX Crimp Tailpiece Connection

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