hilmor Foam Pigs the ultimate solution for efficient, thorough, and hassle-free lineset cleaning. Designed with cutting-edge technology and precision engineering, these foam cylinders offer a range of features tailored to provide optimal cleaning performance. Variety Pack includes 2 sizes of each: 3/8 in, 1/2 in, 5/8 in, 3/4 in, 7/8 in Hilmor®, HLP099, Puck Set, Specifications: 3/8, 1/2, 5/8, 3/4, 7/8 in Line Size, 10 Piece, Foam