PRIER PRODUCTS C-108KT-808 Loose Key Kit for Wall Hydrants Universal Key for PRIER Hydrants The Prier C-108KT-808 hydrant key will work for Prier model C-108, C-234, C-235, C-236, C-237, C-238, C-244, C-534, C-634 and P-264 wall hydrants Loose Key with Lanyard