marsh T-Grade OG Formula Refill

Marsh's original formula T-Grade Marking Ink is back! T-Grade has long been revered for its unsurpassed opacity, flow, and durability. Previously discontinued, this OG Xylene-based formula is now available exclusively through Art Primo. Perfect for refilling Marsh 99s, Pentel Shorty Markers, Magic Ink MGDs, Uni Paint PX 30s, and more. For professional, adult use only. Keep out of reach of children. 100ml/4oz.