Mixing Chamber Kit 3/4"Water-Powered Nutrient Delivery System (NDS) Lo-FloThis Water-Powered NDS Mixing Chamber Kit enhances the blending as the solution passes through. It's a must for silicates.To Complete the LO-FLO NDS, you will also need Dosatron Injectors, DAB Starter Kit or Standard Starter Kit, Monitor Kit or END Kit, and Water Hammer Arrestor Kit.Kit Includes: Union, Mixing chamber, Nipples, Teflon tape ** Parts ordered may look slightly different than the picture displayed, but the fit and function will be the same. Mixing Chamber Kit 1 1/2"Water-Powered Nutrient Delivery System (NDS) Hi-FloThis Water-Powered NDS Mixing Chamber Kit enhances the blending as the solution passes through. It's a must for silicates.To Complete the HI-FLO NDS, you will also need Dosatron Injectors, Starter Kit, Monitor Kit or END Kit, and Water Hammer Arrestor Kit.Kit Includes: Union, Mixing chamber, Nipples, Teflon tape ** Parts ordered may look slightly different than the picture displayed, but the fit and function will be the same. Additional InformationNutrient Delivery System LO-FLO SERIES 3/4" Kits Assembly Instructions (PDF)Nutrient Delivery System HI-FLO SERIES1 1/2" Kits Assembly Instructions (PDF)