I have a CO2 system that I have just taken down because I am in seasonal work and donot have the time or effort to keep the tank looking good.

I have a Rex Grigg regulator that comes with ,
soleniod, LPR, 2 check valves, tubing, bubble counter, hagen ladder,
and 20lbs CO2 tank (full)

Also included will be 1.5L flourish, and almost 3lbs of dry ferts, and red sea co2 indicator

This system ran me over $750 to buy brand new, I am looking to get $400