I have a CDL 250gph RO for sale. Iíve owned it for 2 seasons. Itís in excellent condition. The membranes just finished their second season and weíre just fully washed and rinsed out. It has a brand new prefilter housing on it and a brand new spare low pressure feed pump. ($700) this machine performs awesome and I was concentrating to 14% with it. Only reason Iím selling is to go bigger. This machine is $6,700 new. $4,000 OBO. NEED TO SELL!