Overview Reviews Product Description Heavy-duty, strong, lightweight frame, hexagonal push rod, epoxy finish. 7-to-1 ratio. Product Videos Custom Field Product Reviews Write a Review Write a Review × Crest Cartridge Caulking Gun (GCAH) Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *