Jerrycan opener

This cap wrench opens the caps on 5 and 10 litre jerrycans. A small tool for a problem familiar to anyone working with liquid nutrients.

Why a cap seizes

Caps on plastic cans are tightened firmly and seize over time, especially once nutrient has run down the rim and dried. By hand you get no movement, and with pliers you round off the ribs. A rounded cap never opens or closes cleanly again, and a can that no longer seals leaks in your cupboard.

The wrench grips the whole cap and spreads the force, so you turn it instead of deforming it.

Technical Specifications:

• For: 5 and 10 litre jerrycans
• Type: cap wrench

Frequently asked questions

Does it fit every can? It suits the common caps on 5 and 10 litre cans. With an unusual brand, check your own cap.

Will it shift a crusted cap? Usually. If it is truly stuck, run some warm water over it first.

Do I need it if I use a tap? A tap replaces most of the opening and closing, but the cap still has to come off once.