Current Culture Under Current Evolution 9 Boneless system and  3 Current Culture 3-site Multi -Mod Expansion kit for Under Current Evolution XL.  It's 2 system that are compatible or use separately.   Description for Current Culture Under Current Evolution 9 Boneless.

Item 1 Current Culture Under Current Evolution 9 XL Boneless with One-Site Lids (1 x 5.5" Net Pot)    Current Cultures' UC Evolution 9 is perfect for the grower that is looking for a 9-site deep water culture hydroponic system. , plant spacing, and lid options the under current can be configured in a number of ways. Depending on your configurations the UCE 9 will have a footprint between 4ft 7in x 6ft 10.5in and 7ft 10in x 10ft 10.5in, and a total system volume of 69 gallons to 115 gallons.  The Under Current Recirculating Deep Water Culture (RDWC) System features the patented Sub-Current Culture circulation method. This high-performance water culture system is unmatched in efficiency, layout versatility and ease of use. The Under Current utilizes negative water pressure to recirculate oxygenated nutrient solution through the plant’s root zone ensuring pH and EC levels are uniform throughout the entire system.   

                                             Description for 3 of  Current Culture 3-Site Multi-Mod Expansion Kit for Under Current Evolution XL 

:Under Current 3-Site Expansion Kit for Under Current Evolution XL 
This 3-Site expansion kit from Current Culture allows you to expand your Under Current Evolution XL system by 3-sites. This kit is great if you want to grow more, but don't want to go and purchase a whole new system.    XL Expansion Kit Includes: 
  • (3) 8 Gallon Multi-Mods
  • One 8" Net Pot per Growth Module
  • Both systems are new,  still in the box and have never been used at all.