Check the listing for details. Hydro-Logic Evolution RO1000 Membrane - Reverse Osmosis RO hydro logic. Condition: New. Listed at 194.99 USD. a --> Brand New! Hydro-Logic Evolution RO1000 Membrane About the product Standard membrane included with system. Two membranes are required for the Evolution RO1000 system. What's in the Package Additional Images - Hydro-Logic Evolution RO1000 Membrane FIVE-STAR SATISFACTION GUARANTEED --> Our company has a reputation for delivering excellent service, ensuring buyers' privacy, and delivering quality products at reasonable, competitive prices. We strive to earn a 5-star rating from every transaction. If you are satisfied with the product and service you receive, please take a moment to leave us positive seller feedback. In turn, we will also provide 5-star buyer feedback when your order leaves our facility. If by chance there was something unsatisfactory about your experience, please contact us, and we'll do what's necessary to remedy the problem and ensure 100% satisfaction! TERMS, CONDITIONS, WARRANTIES & POLICIES ABOUT THE HYDRO STORE