When installation of a Studor air admittance valve is not feasible in an existing cabinet, the all-new Studor Recessed Box esthetically conceals valves while providing accessibility as required by local codes. The small, low profile box is easy to install and contains a sleek grille for a clean finish. Its integral test cap is an industry first.

Applications: For venting single fixtures such as island sinks or bathroom groups up to 20 DFU

• Specification Sheet https://www.plumbers-supply-co.com//ASSETS/DOCUMENTS/ITEMS/EN/UNI-PS4151_Spec.pdf