Spring, Compression, .560 O.D. x .65, to fit A-dec® Air/Water Valves; Pkg of 10 (A-dec® #19.0230.00) Package of 10 Kit Includes: stem, spring, diaphragm A-dec® is a registered trademark of A-dec, Inc. DCI has no affiliation with A-dec and A-dec has not authorized DCI replacement parts to be used on or in connection with A-dec® products.