Allow pipe connections to thermally expand and contract with a leak-resistant seal using the 3 in. Flexible Elastomeric PVC Expansion Joint. This easy-fit joint has two 3 in. ends that slide onto pipe. Clamps on each end of the flex joint tighten to secure it in place. Flexible joint provides a rust-, chemical-, and corrosion-resistant connection that allows lateral movement with frequent or significant temperature changes. Durable expansion joint is made of flexible elastomeric polyvinyl chloride. Clamp is made from series 300 stainless steel. Product is ICC, CSA, and IAPMO listed.