For sale California Apex EL - Barely used

I bought this for a system I was in the process of building before eventually selling everything off and never setting it up. This ran my Cor15 pump to check for leaks when I finished the plumbing setup. This has been sitting in my closet for 2 years and the pH probe probably needs to be replaced. When I was checking everything I noticed the pH probe had ran dry. I replenished the shipping cap with RO water just in case. Neptune pH probes are $90 or BRS replacement pH probes are $65.

I’ve set the price of the Apex so that you can choose which probe you’d like to replace with and still save some money. Purchased new the Apex EL is $600 so I’m asking $480.

Im located in Newbury Park but willing to meet up around Ventura County/Valley area. Thanks