Uponor’s Fast Trak knobbed mats provide a faster method for installing PEX tubing in a radiant floor heating system. Used in overpour applications for basements, recreation rooms, bathrooms or any area of a home, Fast Trak is available in two models: Fast Trak 0.5 and Fast Trak 1.3i. Fast Trak 0.5 is 1/2” thick, eliminating the need to alter baseboards, moldings or doors. The product is made for 5/16” PEX tubing and features an adhesive backing. Fast Trak 1.3i is 1 1/4” thick. It holds 3/8” or 1/2” PEX tubing and includes insulation already in the mat.