Poly-Planar MB-21 2" White Waterproof VHF Speaker Poly-Planar MB-21 2" White Waterproof VHF Speaker The Poly-Planar MB21 Waterproof VHF Speaker is perfect for any open or express boat where noise is a concern. This 2" speaker provides clear sound from your fixed mount vhf. SKUPP21W MAN#MB-21 ID#: 2257 (Rating 80) Our Price: $24.95 Availability: Backorder, Expected 5/25/2022 Condition: Brand New Add to cart We’re sorry for the inconvenience, but please know we are working hard to replenish stock and fill backorders. Global shipping constraints and other material shortages have slowed the supply of products in many industries, including GPS and Marine electronics. We update the Estimated Shipping Date on our website in real time, so feel free to check back frequently. Thank You for your patience and for shopping with The GPS Store, Inc.