Do you have Rats in your property? Our Rat Drain Valves Could Be The Answer! We are guessing you have visited our company due to a rodent issue with your property or business? If you are we are able to assist in solving this nasty problem. Rats are one of the most invasive pest species in terms of domestic infestations. Over the past years, their population in urban areas have increased significantly. They bear illnesses and cause a great deal of damage and breed a rate of knots, which grows the rat colony fast. Our Rat control valves are designed to prevent rodent ingress into the building via the sewer network. All our valves use 316L stainless steel metal ensuring longevity of the product.