25x30mm Cytoflex® Smooth Tef-Guard® ePTFE Membrane (1/5 Packs) Cytoflex® Smooth Tef-Guard® Microporous ePTFE Membrane is designed to provide the most reliable barrier for bone regeneration procedures with excellent tissue attachment and handling properties. Designed as an improvement to popular membranes including Cytoplast™ membranes, this is the