The Ames 3000SE is a double check detector assembly (DCDA). It was available in 2 1/2″, 6″ and 8″ sizes. It was produced from 1990-2006. The body was made of stainless steel. The “SE” models utilized the same check modules as the “SS” series but were one size smaller then the pipe size. Example: 8″ 3000SE uses 6″ 3000SS parts. The 3000SE utilized multiple devices for the bypass assembly.