Hydro-Logic PreEvolution Chlorashield ***

***Prices on media and other products are subject to change, please contact our store location for an exact quote*** Hydro-Logic® Chlorashield membranes remove 100% of chloramine and are great for city water. Rated at 1 GPM down to 1 micron. They are made in the USA and have a low pressure drop combined with exceptionally high dirt holding capacity. HGC741640 is for PreEvolution systems (10 in x 4.5 in) and should be replaced after 7,500 gallons.