+3 MAST SEAL PLATE,H16 21090001 $5.39 In stock Quantity: 1 Add to Bag Product Details UPC: 792176015260 Brand: Hobie Part #: 21090001 Hobie 16 Mast Seal Plate Replacement mast seal plate for Hobie 16 manufactured by Hobie Cat Company. Save this product for later Favorite