The MAHC-I Expansion Kit is designed to expand existing 18" x 36" MAHC-I covers for retrofit applications. It includes two 9" x 18" unblockable suction outlet covers made from UV-resistant PVC/polymer, secured with #316 stainless steel screws and brass inserts for long-term durability. Certified to NSF/ANSI 50 and APSP/ICC-16 2017 standards and fully VGBA 2017 compliant, this kit provides reliable safety and performance for commercial pool and spa systems.