Viking Clapper Assembly | Model F1 and F2 Dry Valves | 3 in. and 4 in. | 08324 SKU : VK08324 MSRP: $330.99 Viking Clapper Assembly for 3 in. & 4 in. Model F1 & F2 Dry Valves is a spring-loaded assembly designed to provide a positive mechanical seal, filling a dry pipe fire sprinkler system with water when air pressure drops. This clapper assembly is a... Qty in Cart: 0 Quantity ( in cart): Decrease Quantity: Increase Quantity: Price: MSRP: $330.99 Subtotal: Add to Cart