Only thing I saw was 3.2 gallons (when you look at the RSR 425 kit at BRS) doesn't give actual size beyond that though.
That said, you're way closer to me to him so you go ahead and take it, I can continue to use the salt bucket
Thanks for the tag @MozbyI have a brand new 425 red sea reefer Reservoir that I am not using. Free to anyone that want to pick it up. Otherwise it will go to the trash. Pick up in Berkeley in the evening