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