The Uponor PEX foam stapler is an ideal solution for securing PEX and multi-layer composite tubing to foam-board insulation in concrete-slab radiant heating and cooling applications. Its self-standing ergonomic design makes fast work of stapling down tubing for hydronic radiant systems, while the new design reduces staple-jamming compared to older stapler models, Uponor notes. The product features a fixed staple weight, which eliminates the problem of removing and losing the weight. The stapler is designed for use with 3/8” through 3/4” PEX and 1/2” through 5/8” MLC tubing.