Irion America XP-Delta is a high quality sealant gun that has a rotary carriage and an attached ladder hook. The handle is rubber-coated as well as the trigger. Irion America XP-Delta sealant guns have activatable, non-drip functionality. Irion America XP-Delta caulking guns offer anti-corrosive performance and has a catch plate that is very tough and quite durable. What make this sealant gun stand out from the rest is that is has a trigger that toggles between the ratios of 25:1 and 12:1. The Irion America XP-Delta sealant gun is designed for cartridges up to 10.3 fluid ounces.