OptiShield Product Details We're really sorry... We don't currently have that one in stock Please add your email and we'll notify you when it's back Email Your Name Your Email Your Comments SendClose Window Login Details Email Password Remember login on this computer? New Account Full Name Email Password Allow Promotional Emails(We will never divulge your email to a 3rd party) Home» All OptiShield Products» Glycol Solutions Dowtherm SR-1 and Water5 Gallon SizePrice: $187.00 Premix is a mixture containing 45% RO water, and 55% Dow SR-1 Inhibited Ethylene Glycol. The glycol is for burst protection as well as for corrosion protection. Add to cart« Previous | Next »