The 35 gallon Under Current© Pro Double Barrel systems will function much like their 8 and 13 gallon counterparts, but will feature several unique and up-sized heavy-duty components. For commercial applications, the Under Current© Pro Double Barrel triumphs in efficiency and yields. The Pro system offers growers the opportunity to fill very large spaces and grow massive plants without the extra work of managing multiple systems and reservoirs. Having fewer larger systems equals higher productivity in terms of workflow, transplanting, maintenance and harvesting. The Under Current© Pro Double Barrel system would be best situated in either a greenhouse or indoors with a combination of vertical and horizontal lighting. The 35 gallon Pro growth module with single plant sites will be best utilized on 70 in + plant centers. Under Current© Pro Double Barrel systems include: Pro 35 gallon heavy-duty ABS growth modules, one 8 in net pot per growth module, Pro heavy-duty ABS lids with dual portholes, 3 in manifold fittings and 3 in UC spin-tight bulkheads, premium mag-drive return pump, premium linear air pump or regenerative blower (16-site and above), Aqua-Pore Pro XL air diffusers, Pro air distribution manifold fittings and Pro air tees, quick connect air hose, in-line filter(s), adjustable float valve with reservoir adapter kit, drain valve, chiller adapter, garden hose drain adapter and Cultured Solutions VEG A/B. 16 site has a 35 ft x 30 ft grow area, 24 site has a 35 ft x 45 ft grow area area and 32 site has a 35 ft x 60 ft grow area. These items are drop ship only.