Stainless Steel Vulcanized Seat Design (Lever & Gear Series) 6832SEL Stainless Steel Resilient Seated Butterfly Valve, Vulcanized Seat, Lug/Lever Series PRODUCT DETAILS 6833SEG Stainless Steel Resilient Seated Butterfly Valve, Vulcanized Seat, Lug/Gear Series PRODUCT DETAILS Ductile Iron Vulcanized Seat Design (Lug & Wafer Series) 4833 Ductile Iron Resilient Seated Butterfly Valve, Vulcanized Seat, Lug Series PRODUCT DETAILS 4832 Ductile Iron Resilient Seated Butterfly Valve, Vulcanized Seat, Lug Series PRODUCT DETAILS 4133 Ductile Iron Resilient Seated Butterfly Valve, Vulcanized Seat, Wafer Series PRODUCT DETAILS 4132 Ductile Iron Resilient Seated Butterfly Valve, Vulcanized Seat, Wafer Series PRODUCT DETAILS Ductile Iron Cartridge Seat Design (Lug & Wafer Series) 4800 Ductile Iron Resilient Seated Butterfly Valve, Cartridge Seat, Lug Series PRODUCT DETAILS 4802 Ductile Iron Resilient Seated Butterfly Valve, Cartridge Seat, Lug Series PRODUCT DETAILS 4100 Ductile Iron Resilient Seated Butterfly Valve, Cartridge Seat, Wafer Series PRODUCT DETAILS