RITE-HITE Slide Type Valve Box Top Adapter or RiserThe RITE HITE adapters provide a method for adjusting valve boxes to pavement level. Usage Recommendations for our SLIDE TYPE Adapters: If the existing valve box is too low, place the RITE HITE inside the existing box, pour cement mortar around it and push down until the RITE HITE is flush with the pavement surface. If the existing valve box is too high, break off the top of the valve box and insert the RITE HITE. Then pour stiff cement mortar around