



🚽 Seal out pests and backflow with 30 years of trusted protection!
The MF1 ARB1 MultiFlap valve is a robust anti cross-flow and rodent barrier valve designed for toilet WC outlets. Crafted from black polypropylene with marine-grade stainless steel components, it fits most toilets with rear waste outlets and prevents pest ingress and backflow. Tested for over two million cycles, it promises over 30 years of maintenance-free, reliable performance, making it an essential upgrade for modern, hygienic plumbing systems.
| ASIN | B01819CQ5I |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 124,513 in DIY & Tools ( See Top 100 in DIY & Tools ) 269 in Drainage 1,160 in Pipes, Pipe Fittings & Accessories |
| Certification | CE |
| Customer Reviews | 4.4 4.4 out of 5 stars (37) |
| Date First Available | 15 Nov. 2015 |
| Item Weight | 120 g |
| Item model number | MF1 ARB1 |
| Manufacturer | Multiflap |
| Material | Polypropylene (PP) |
| Number of Pieces | 1 |
| Package Dimensions | 15.3 x 13.3 x 11.4 cm; 120 g |
| Part Number | MF1 |
| Size | 4 inches |
M**R
Wonderful product
product as described, came on time.
M**R
Brilliant
Works brilliantly after messing about with plumbers etc on a back flow situation and spending a fortune this simple gadget solved everything
M**R
Very expensive for what it is
Just hope it does what it's meant to do. Very expensive for two bits of plastic and q wire spring. Should be about £5. Needed a bit of grease to lubenitnto slide it into the pipe so did spring at same time to protect from corrosion. Also need to be careful enough installing to ensure the shape is not distorted to ensure flap seals.
A**.
WC Barrier
Delivered on time. Ideal for what we needed it for. Would use company again.
M**Y
Works great
As described solved a problem thankyou
A**R
Great service
Speedy delivery and the price was good
A**R
Five Stars
Fantastic thank you
C**Y
Cured our rat problem
This value for money device was an absolute life saver for me as it has totally cured out rat problems It has totally stopped them from being able to come back up along our domestic drain
Trustpilot
1 month ago
1 month ago