Add to Cart Quick view SALE Hayward Pool Products Inc Hayward TigerShark Plus Box 4 hr. Upgrade Kit for AC Units # RCX40000 $1,263.95 $664.95 The Motor Box 4 hr. Upgrade Kit for AC Units is a replacement part for your Hayward Tigershark Plus pool cleaner.Part Number: RCX40000D ***Replaces RCX40000*** Add to Cart Add to Wishlist