Midwest Washing Equipment Midwest HydroMixer XXL 1" Clearview Proportioner The Hydro-Mixer XXL Proportioning system features 1" clearview manifold block 1" Hayward water valve (high flow valve made in the USA) 1" Hayward chem valve (high flow valve made in the USA) Hayward... $1,225.00 choose option Quick view Add Wish List