Plasson Rural Reducing Coupling, 1" to 2" This reducing coupling joins two different sizes of rural poly pipe. It's available in sizes from 1" down to 3/4", up to 2" down to 1 1/2", covering a wide range of rural pipe combinations. Farmers and contractors use this fitting where pipe size steps down along a rural water line. It gives a secure, leak-free connection between the two different diameters. Features Available in sizes from 1" x 3/4" up to 2" x 1 1/2" Suits rural poly pipe on both ends Compression joint installs without special tools Corrosion resistant for long term outdoor use Instant seal on installation with a captive O-ring A solid choice for stepping down pipe size on rural water lines.