The OX Pro Rodless Sealant Gun is suitable for all cartridges up to 400ml and is ideal for use with latex & silicone caulks. It comes with an internal push rod design for optimal access when working with tight or hard-to-reach spaces such as behind sinks, internal cabinets or shower cubicles. Its lightweight-reinforced polycarbon housing and ergonimic handle makes it comfortable to use. It features a riveted and reinforced carriage and a belt hook for easy clip to tool belts.