MAXIMIZER ER concrete mix is specially formulated to provide MORE COVERAGE PER BAG than the leading competitor, 67% more to be exact. With our bag you will receive a superior product with a special aggregate formula. The special formula makes MAXIMIZER stronger – 5500 psi – and easier to mix than regular concrete. It takes you less time to finish that fence or deck and the results you get with MAXIMIZER are outstanding. As the strongest concrete available to buy in a bag, it will stand the test of time and offer you the finest quality product.