Shore up connections between pipes with PVC and nylon insert fittings from F.W. Webb. Our selection of couplings, tees, and elbows includes fittings in a variety of sizes and widths to work with your specific pipe size. Each fitting is made in durable PVC or flexible nylon in order to create an additional barrier and help reduce the chance of leaky joints. Find reducing couplings made from nylon to create watertight barriers within pipes; insert tee fittings are forked in two different directions for flexibility in system setup; convenient insert elbows allow pipelines to bend around corners and into hard-to-reach spaces. From insert adapters to coupling tees, our collection of PVC and nylon fittings has the products you need to make piping installation easy.