3-Inch Weep Hole Filter with Check Valve

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.