The bottle you will receive is a 1 oz bottle. The 2 oz is not available anymore.

Apply Eco One Enzyme-Plex Filter Boost directly to your filter after each monthly cleaning.

Eco One Enzyme-Plex Filter Boost will improve the efficiency of your filter, make it easier to clean and help to remove damaging minerals and phosphates from your water. Each container contains a six month supply for average home spa use.

If you are using Eco One for the first time, we highly recommend that you order the Eco One Starter Kit instead.

EO2004 - Eco One Filter Booster Enzyme Plex with Zelite