SPECIAL ORDER ITEM. Review Returns Policy before purchase. This second check kit is designed for the 880 series reduced pressure zone assembly. Featuring a durable ductile iron body with a fused epoxy coating, this component ensures long-lasting performance in demanding environments. The internal check mechanism utilizes a swing check design with bronze parts and replaceable seats for easy maintenance. Check springs are safely contained during cover removal, simplifying the repair process. The clapper plate features a vulcanized design for reliable sealing.