Overview Reviews Product Description For 1 gallon jug and cubitainer. Cap with molded hole to accommodate three piece air lock only. Product Videos Custom Field Product Reviews Write a Review Write a Review × 38mm Plastic Screw Cap with Molded Hole Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *