Used like a "Y" valve this unit helps minimize hose runs by allowing two connections with one hose running up to pump or manifold. The VA-2 can be mounted in any direction. Pump hose connects to top or side. Three mounting holes predrilled for easy install on stringers and bulkheads. Also available in 3 valve configuration (VA-3), the VA-3 features a choice of three pump connection locations: top, left side and right side.