12oz. - Professional-grade caulking gun designed for dispensing standard 12-ounce cartridges of caulk, adhesive, and sealant with reliable control and performance. Manufactured by Marshalltown with durable construction for residential and light commercial applications. The standard 12-ounce capacity is ideal for general caulking tasks, concrete crack sealing, and everyday construction projects requiring precise bead application.
30oz.- Heavy-duty professional-grade caulking gun designed for dispensing 30-ounce cartridges of caulk, adhesive, and sealant with superior control and power. Manufactured by Marshalltown with robust construction for demanding commercial and residential applications. The oversized 30-ounce capacity reduces cartridge changes on large projects while the Super design provides enhanced thrust ratio for easier dispensing of thick materials like construction adhesives, concrete caulk, and heavy-bodied sealants.