Seal-r riser lids from BrenLin Company create a strong seal between the septic tank and the riser, designed to eliminate water infiltration. They are made of durable materials, range from 12 to 42 inches, and can be personalized with a service provider’s company information. The 42-inch lid meets growing demand for bigger risers to accommodate new technology equipment. 888/606-1998; www.seal-r.com.