What's the main difference between a HP 120 Steel and a LP 120? I know the HP is smaller in physical size and requires a DIN value. I am leaning towards getting the LP 120 AquaAir Pro from leisurepro.com for $289 or should I go for the HP 120??
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JimC
Contributor
A HP tank will smaller and lighter. They are rated to 3500psi. So a 3500psi fill -> 120cf.
A LP tank will be larger. Rated to 2640psi. A 2640psi fill -> 120cf.
Many stores cannot fill to 3500. Chemical gas laws are less ideal at higher presures. LP tanks can be more easily overfilled.
HP tanks are harder to fill, especialy off banks and when mixing.
I beleive most people will advise LP Steel for most applications.
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