COST COMPARED TO CONCRETE: HUGE inspection chambers are competitively priced with similar products in the market today. When compared to traditional concrete products, HUGE inspection chambers may seem to be slightly higher in initial costs. However, offsetting this initial cost is reduced installation time, labor costs and product life. Our PE product parts weigh on the average only about 30-35 kilogram each. These parts can easily be assembled without the aid of heavy equipment. Our products completely stop infiltration and exfiltration and do not corrode or break down like concrete manholes. All products can be vacuum or hydro tested without concern for leakage (ASTM D-3350). According to the EU standards (EN13598), it is compulsory that all infrastructure systems are water-tight.