MSA 813139 Silicone Cup Replacement is a black, medium silicone cup designed to replace the silicone cup in MSA Ultra-Vue and Ultra-Twin respirators. The part number 813139 identifies this replacement for Ultra-Vue and Ultra-Twin facepieces, ensuring a compatible fit. Use this replacement to maintain the seal and function of the respirator's silicone cup when the original wears or is damaged.
