Breeching Inlet vs Sprinkler Booster assembly

[kayfactor]

Hi All,
I probably should have done more research before posting this but oh well
what is the price difference between a Breaching Inlet vs. Sprinkler booster assembly.
In Middle East all I saw were breaching inlets whereas in Australia I haven't come across this term however there are sprinkler/hydrant boosters everywhere

Thanks in advance

 

[cdafd]

Breeching inlet= fire department connection?

http://www.slideshare.net/mobile/bansalash/breeching-inlet

Booster assembly,,, same thing???

Interesting set up:::

https://www.citywestwater.com.au/documents/Drawing_13.pdf