amazon303303® Marine Aerospace UV Protectant Spray for Vinyl, Plastic, Rubber, Fiberglass, Leather & More – Dust and Dirt Repellant - Non-Toxic, Matte Finish, (30340M) 473mlAbout this item . BIO R-303 is a liquid fertilizer extracted from wild species of Laminaria plant. BIO-303 is an organic crop protectant,very deffective against re spider mite, aphids,leaf miner,