This guardian-style cap protects vent systems in marine applications. Designed for metal reservoirs, the Guardian 228 is easy to grip and turn and comes with a 1/4-turn lock, which cannot be over tightened.

Quick Facts:

• Multiple vent options
• Designed for marine applications
• Guardian-style design protects vent systems
• Easy to grip and turn
• Variety of graphics available
• For use on metal reservoirs