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PRICE IS PER PIECE. Filter with polypropylene coating d125 with casing pipe wall thickness of 5.5 mm is used in almost all non-cohesive and cohesive soils; Pipe length - 3 m; Coating length - 2.5 m; - protection against penetration of root tissues and sand into the filter pipe; - possibility of use in neutral, acidic, and alkaline environments with high mineralization of groundwater; - the well filter has high mechanical strength; - simple design; - ease of installation of the well filter; - high performance characteristics - the design is close to an ideal drain in terms of formation opening; - the well filter has a wide range of design types and versions. Pipes with a water intake layer (well filter) made of fibrous-porous polypropylene have an optimal ratio in terms of: - filtration rate; - one of the best filter cycles; - high quality of purification from suspended solids; - protection against penetration of root tissues into the filter pipe; - increased dirt capacity of the filter; - possibility of high-speed flushing, allowing a high degree of regeneration; - low hydraulic resistance