PestFlap Products

PestFlap comes in two builds, PF3 and PF4, so whether you’re fitting a US toilet flange or a UK floor drain, there’s a version engineered for your exact connection. Pick the wrong size and you’ve fitted nothing at all, so this page exists to make sure that doesn’t happen.

Which PestFlap Fits Your Drain?

Sizing is the single most important decision on this page. Nominal pipe size is a starting point, not a guarantee of fit. Take the time to check your actual connection against the table below before ordering.

Model PF3 PF4
Nominal Connection 3-inch 4-inch / 110-mm
Best For Standar US toilet flanges and
floor-drains
Drains, floor drains, gullies &
compatible multi-outlet applications
Primary Market United States UK & International
Installation Retrofit - Confirm compatibility
before ordering
Retrofit - Confirm compatibility and
insertion depth before ordering
Operation Normally closed, spring-assisted flap Normally closed, spring-assisted flap
Support Trade & Technical Support Trade & Technical Support
Product Link View pf3 view pf4

Still not sure?

Send us a photo and the measured internal diameter of your drain opening, and we’ll confirm the right fit before you order, not after.

Confirm Compatibility Before You Order

Every drain is slightly different. Pipe material, fitting type, available insertion depth and overall condition can all affect the fit. For anything outside a standard setup, check the technical drawings for your chosen model before ordering, or send us photos and measurements and we’ll confirm compatibility directly.

Have Any Questions? Contact Us!

Office Address

28, Somerset Close, Fazley, Tamworth, B78 3XH

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