Eco-Tech Inc., of Ann Arbor, Mich., now offers models DLA-9 and DLA-12 in 1/4?? John Guest Speedfit size. The addition of the 1/4?? inlet option reduces the installation cost in applications where 1/4?? reject water tubing is run straight to the drain. Both models are currently available in 1/4?? and 3/8″ John Guest, and barbed insert for 1/2?? ID tubing. These adapters are third party tested to ASTM F 409 and engraved with the F 409 Standard. All the models in the DLA Series of drainline and air gap adapters are IAPMO/UPC listed.