DeTer Rat Bio-Repellent Spray 500ml RM35.80 DeTer Rat Bio-Repellent Spray 500ml is formulated to repel rat from your property without compromising your health. Add to cart SKU: DeTer 500ml-1. Categories: Ant, Indoor Pest, Pest Control, Rat, Roach. Tags: Ant, Indoor Pest, Rat, Roach.