RPS Products Inc.: the Making Waves Waterbed Drain & Fill Kit (DFK model) and the Making Waves Waterbed Patch Kit (WPK model). Here are key details: The DFK kit includes a hose adapter, faucet converter, and a drain/fill pump per box. The Waterbed Patch Kit (WPK) is a multi-purpose product designed to repair waterbeds, airbeds, inflatables, pools, and other vinyl products. The drain pump attaches to a faucet and can drain a waterbed quickly depending on water pressure. 45 square inches Repairs: waterbeds. Airbeds, inflatables, pools and vinyl products.