$10 · 5lb tailgate BBQ Tanks

I have TWO empty 5 lbs BBQ tanks. Both need re-certification. Valve/tap removed on both. Ready for paint. Viper Fuels in Chemainus BC will do re-certification for $28 each. Will sell one for $10. OR Both for $20. My plan was to use the 5 lbs on my small BBQ Instead of the throw away cans. But as I drive a large vehicle I can just use a 20lbs with the BBQ.