Mr. Soaker Hose .580 Soaker Hose Coupling, Bag of 10 Use 580 Coupling to connect 2 pieces of .580 od poly tubing or .580 od soaker hose together. Compression fittings require no glue Also Fits Element Soaker Hose Fits Mr. Drip/Mr. Soakerhose 3/8" Soakerhose and Rainbarrel Soaker Hose