Fernco "4"" Fernco Flexible PVC Compression Donut - 4.3 PSI Black 44U-405"

Fernco Donuts are flexible PVC donut-shaped rings for the compression sealing of sewer pipe joints and DWV connections. Examples are sockets, hubs, bells and spigots. Available in hundreds of sizes and configurations to fit the wide degree of variations in pipe, bells, hubs and bore dimensions.|Corrosion proof and unaffected by acid or alkali|4.3 PSI maximum test pressure|No special tools or sealants required|Rated for above or below ground applications|Maximum operating temperature of 120F|Must be sized within 1/8" of pipe dimensions to create a compression seal