Help Nitrogen Regulator Help Please

[lolxd69420]

i finally got my 40 cf nitrogen food grade cylinder and my exit bag all set up,

last step now im confused on the correct regulator? can anybody please help me find the right one? i will pay whatever is necessary but amazon would be most ideal.

i read the megathread and am still confused on an exact model with a nitrogen flowmeter AND the ability to get specific with about 15-18lpm?

any help is greatly appreciated, thank you guys

https://www.amazon.com/gp/product/B09M79FY74/ref=ox_sc_act_title_1?smid=A1QZKSFGQN5HY7&psc=1#averageCustomerReviewsAnchor

is this one ok? im not worried about price i just want to get this correct and asap