Hanover's Aqua-Loc® is a 4 1/2” x 9” x 3” unit with a score to appear as two 4 1/2” x 4 1/2” x 3” pieces. Aqua-Loc® interlocks for stability and provides open space for drainage aggregate. Aqua-Loc® will provide the project with 5.7% open space allowing water to be infiltrated at a rate of 7” to 8” per hour based on proper installation methods. Made to order in custom colors when quantities permit, Aqua-Loc® can be installed mechanically to save time and reduce costs. When used in vehicular parking applications, Aqua-Loc® can work in conjunction with tight-jointed pavers. The tight-jointed pavers can be used to form pedestrian friendly areas such as handicap parking areas, walkways and ramps.