The Canna Spanner is a handy little tool for growers using 5 and 10 litre Canna nutrient bottles. Great for helping to release stuck bottle caps or for breaking the seal on a brand new bottle.
How the Canna Spanner Works
The Canna Spanner is a tough plastic spanner that fits over the ridges on the 5 and 10 litre Canna nutrient bottle caps. Once fitted over, the Canna Spanner will give you extra leverage to get those stuck bottle caps off.