Hypro Diaphragm Pumps - Replacement PartsAR3120690Drain PlugReplacement for: 9910-DP423, 9910-DP423GRGI, AR45LFP, AR45LFP-GRItem # in Image: 37Quantity Required: 2 This item is not kept in stock, and will have to be ordered in from the manufacturer when order is placed.More InformationClick...