The Rescue Rain Barrel Linking Kit allows for two rain barrels to be linked together to increase rain water storage capacity. This is ideal for users wanting to extend rain water storage capacity of an already existing system. it is also great for home owners who have lots of shrubs or other obstacles around their downspout. With a flexible linking kit, barrels can be placed practically anywhere, even on top of each other. And barrels can be linked indefinitely. Just daisy-chain them together to keep increasing capacity. This rain barrel linking kit will work with virtually all plastic rain barrels. Simply place the barrels appropriately and drill a hole in each barrel, according to the instructions. Then connect the included grommets and tube andyou are done. Winterization is a snap; simply remove the tube and store! The vinyl tubing is clear and safe for use with food grade water barrels. Don’t waste money on complicated linking kits that only work with specific rain barrels or whacky DIY solutions when you can get the universal Rescue Rain Barrel Linking kit from EMSCO Group.