The marine models are UL/USCG approved for installation inside the
engine compartment but I don't know of any difference with the spin-ons
except the metal bowl. The only difference I can find on the turbine
models is that the marine version has a heat shield below the bowl. All
the other replacement part numbers are the same. I got a couple of used
500FG2s and ordered $20 worth of parts to upgrade to the MA2.

John Knox wrote:
does anyone know the difference between the racor
'standard' fuel filter series and the 'marine'
series? the 2 part numbers i am comparing are
120a and the 120rmam2. the major difference
seems to be that the marine model lists for about
twice the standard model.

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com