Sentry ATO / Auto top off - RO Unit

#1
Hey all, have the below 2 items for sale:

Sentry ATO - uses an optical sensor - I used it for 1 week, so practically brand new. 50$

AquaMaxx Ro unit. Brand new Fitlers and 75gpd Membrane, and for some reason I cant get the TDS below 30.... I think the plumbing is wrong or something. not sure. I dont have my tank any more so dont wanna mess with it. - 50$

Pics attached,

Thanks
 
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