Manlid - 20" - Assembly - Aluminum Cover - 6" Aluminum Neck Ring - Wing Bolt Hold Downs

·         20" Opening

·         Hydro-Statically tested to 47 PSI

·         Six (6) 5/8" Wingbolt Hold Downs

·         Nylon, corrosion-resistant Wear Plates

·         Interchangeable with Industry Standards

·         30 PSI MAWP

·         Aluminum Weld Collar