New *unicel* c7697 replacement spa filter cartridge industry's most complete line of replacement filter elements for use with: harmsco (st/tc 155) (note: original is 7 3/4". harmsco original is 7 3/4" od) sharp pleat folds maximize spacing between pleats tough urethane end caps assure durability for the life of the cartridge outside width: 7 1/2 inches length: 29 1/16 inches top end cap: 3 1/2-inch female thread/fpt 0-inch inside width bottom end cap: open 2 5/8-inch inside width pleat count: 200 media: 4 ounces description: harmsco sc/tc 155 part #: c7697
