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Fernco Donuts are flexible PVC donut-shaped rings for the compression sealing of sewer pipe joints and DWV connections such as sockets, hubs, bells and spigots.
- No special tools or sealants required
- Corrosion proof and unaffected by acid or alkali
- Rated for above or below ground applications
- Must be sized within 1/8" of pipe dimensions to create a compression seal
