The Heptane Compatible Solvent Recovery Membrane is a heptane-compatible spiral-wound nanofiltration membrane for continuous solvent recovery and extract concentration in botanical extraction systems. It selectively permeates solvent molecules while retaining cannabinoids, terpenes, and other valuable extract components, enabling efficient solvent reclamation without evaporation. Compatible with Infinity Filter nanofiltration systems; the heptane-compatible variant is optimized forheptane and hydrocarbon solvents.