3-Inch Weep Hole Filter with Check Valve

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The 3″ Weep Hole Filter with Check Valve is engineered to protect seawalls, retaining walls, and bridge abutments by relieving hydrostatic pressure while preventing back-flow. Its closed-end check valve design ensures one-way drainage, maintaining structural stability even under challenging conditions. With a conical geometry offering over two-times the water-flow of traditional piping and a filter fabric surface area of 17.44 in², the unit promotes optimal drainage efficiency. Built from corrosion-resistant stainless steel and UV-protected thermoplastics, it is designed for long-term performance in marine and harsh environments. Show more