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Drainage Accessories
Flap Gates
Flap Gate 4" Standard for CMP, PVC & Corrugated Plastic

Flap Gate 4" Standard for CMP, PVC & Corrugated Plastic

Agri Drain

Flap Gate 4" Standard for CMP, PVC & Corrugated Plastic

2 reviews

$45.96

SKU:: FG04ST
Availability:: Usually Ships in 24 Hours

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Flap Gate 4" Standard for CMP, PVC & Corrugated Plastic

$45.96

Description
Specifications

Rugged steel construction ensures a longer life and helps keep drainage systems from flooding.

Designed for use on PVC, CMP, and corrugated plastic tubing.
Band fits approximate pipe O.D. of 3.85" to 5.1". See spec sheet below for full details.
Flap is galvanized, 12 ga. mild steel.
Attachment bracket is steel with a durable powder coat finish.
Flap Gate does not have a gasket and is not watertight.
Flap should sit flush against the pipe, not the band, to ensure optimal performance.

Agri Drain Standard Flap Gates

Customer Reviews

2 Reviews Write a Review Hide Reviews Show Reviews

4 inch flap gate
4
Posted by Robert S. on 25th Jul 2026

Thanks to this heavy-duty product, water from our creek no longer backs up into our crawl space drain pipe during heavy rain flash floods. Very effective and well-design product that gets the job done.
As advertised, simple install
5
Posted by Michael on 2nd Apr 2022

Simple install and heavy enough to keep out the troublesome animals (mostly frogs) from my rain collection overflow.