Closed‑barrel sealed cylinder design: Fully‑enclosed barrel prevents glue leakage, keeps the caulking gun clean during heavy‑duty jobs.
Two‑size optional barrel length: 225mm / 400mm barrel, 0.31L & 0.4L capacity, fits different cartridge specifications.
Precision thrust‑out mechanism: Steady glue output, uniform bead, no sudden dripping for smooth sealing work.
| Products Name | Model | Item No. | Star Rating | Barrel length | Capacity |
| Sealed Cylindrical Caulking Gun | HCAG03-0225 | 311100201000 | Four Stars | 225mm | 0.31L |
| HCAG03-0400 | 311100401000 | Four Stars | 400mm | 0.4L |
