Also connects grow chambers to reservoirs or each other! Use our modular plumbing pieces to connect reservoirs, tubs, gutters, etc. together! Although you can use this kit to daisy chain up to 3 reservoirs together, we suggest using it to connect 2 reservoirs together with a high and low point for better circulation. Also use this kit to make air and water tight connections from your grow chamber(s) to reservoir(s) or ?