GRINLOS caisson is a deepened container in the ground, protecting the well and pipes from freezing, as well as the penetration of sewage and high ground and flood waters. Plastic caissons are made of polypropylene, block copolymer - a strong and durable polymer material.
Polypropylene caissons are perfect for installation in the middle zone of Russia. The use of caissons is possible in areas with virtually any hydrological conditions.
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