This is one of the best valves available on the market!
It is very relaible, it's rated at an amazing 450 psi and it's smaller and lighter than the 250 and 450.

3/8" $45.  Buy 4 or more $40 

1/2" $45.  Buy 4 or more $40

3/4" $55.  Buy 4 or more $50