Canna Spanner

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Canna Spanner 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 s eal 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. To see the full Canna Nutrients range, click here Show more