Unifilt Corporation established in 1977, is the only full-service filter media company, with experienced staff and equipment to efficiently remove and replace media. Equipment rentals and technicians are available for underdrain repairs or replacements. We specialize in the supply of anthracite, sand, gravel, & garnet; exceeds AWWA B100-09; NSF standard 61. Filter evaluation and testing to confirm performance & compliance. Uni Liners for rehabilitation of Wheeler bottoms, constructed of durable HDPE, mechanically lock into place requiring no adhesive. Uni liners rehab wheeler bottoms to a perfect form without tedious, costly hand work. Replaced worn out liners for a fraction of the cost. Air Scour is designed for new construction & retrofit installations in conventional arrangement, with dedicated blower and stainless steel supply piping. Client can evaluate the Air Scour prior to making an investment by taking advantage of our Short-Term Rental. We will supply a portable diesel-powered blower, module and temporary piping. We'll install the system & instruct plant operators on usage and maintenance protocols.