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🚫🐀 Stop pests & floods before they start — the ultimate 6-inch pipe guardian!
The Buffalo Retro Fit Non-Return Valve is a robust, tool-free solution designed to fit 6-inch (150mm) sewerage pipes with internal diameters from 136mm to 152.5mm. Compatible with clay, PVC, and concrete pipes, it features a stainless steel flap that blocks rodents and vermin while preventing sewage backflow during floods. Easy to install and built to last, it protects your property from unwanted pests and costly water damage.










| ASIN | B07V3JJWPR |
| Best Sellers Rank | 21,431 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 160 in Pipes |
| Brand | Buffalo Flood Systems |
| Customer Reviews | 4.1 out of 5 stars 143 Reviews |
| Exterior Finish | Stainless Steel |
| Exterior finish | Stainless Steel |
| Inlet Connection Size | 6 Inches |
| Inlet Connection Type | PVC |
| Inlet connection size | 6 Inches |
| Inlet connection type | PVC |
| Item Dimensions | 16 x 15 x 15 centimetres |
| Item dimensions L x W x H | 16 x 15 x 15 centimetres |
| Manufacturer | Water and Pest Technologies |
| Material | Plastic |
| Model Number | FLC444 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Number of Pieces | 1 |
| Number of Ports | 2 |
| Outlet Connection Size | 6 Inches |
| Outlet Connection Type | PVC |
| Part Number | FLC444 |
| Set Name | Check Valve Kit |
| Size | 6 inches |
| Thread Size | 150 mm |
| Thread Type | G |
| UPC | 703694886423 |
| Unit Count | 1.0 count |
| Valve Type | Swing Check Valve |
P**T
Fantastic Unit
I fitted this unit to prevent odours from the sewer entering our bathroom, It works perfectly and the odours have gone.
R**J
One way made easy
Great product at an excellent price easy to install and does the job in hand would highly recommend
T**S
Works great!
Brilliant item. Easy to install and stopped drain smell backing up the pipe.
T**K
Good
It worked fine. I had bad smell in 2 of my bath rooms when air blows outside the house and finds it way into the drainage pipe network. But since I fitted it in the main drain, it perfectly blocked the air flow and stopped the smell .. Nevertheless, toooo expansive for what it is.
Z**E
Doesn’t work and no response from seller
Don’t buy this! We did and after 2 weeks the rats had chewed around the plastic edging and managed to get back into our home. We contacted the sellers to ask for a refund and have not even received a response. Disgraceful customer service. We’ve had to buy another one from a different seller (stainless steel) which has done the job. Save your money and the stress by buying a stainless steel one. Rats will get through this and the sellers won’t give you your money back.
M**H
Quick easy solution to stopping rats entering the bungalow
Easy to fit.up to now all quiet in the loft.
P**K
Does the job
Excellent piece of kit, just fits so easily. Just needs oiling when needed.
M**N
Excellent
Top quality will buy more
P**T
Ottimo prodotto
Anche se il prezzo è decisamente elevato, la valvola si presenta con materiali di ottima qualità e la fattura del prodotto è molto elevata. Il prezzo vale l'acquisto poiché è l'unica che può essere installata infilandola direttamente all'interno del tubo, perfetta in quei casi non si ha uno spezzone di tubo atto a fare da maschio con le altre valvole di non ritorno.
P**S
fast delivery
perfect as described, easy to fit and good quality
R**M
Alles bestens
Einbau leicht und einwandfrei, macht qualitativ einen guten Eindruck
J**N
Water terugslagklep
Toepassing, voor waterverplaatsing vanuit de rioolering te voorkomen naar garage
R**T
Non ci siamo anche se...
Cercavo una valvola maschio come questa e realmente altre scelte non ce ne sono. La valvola in se e' abbastanza robusta anche se non si giustifica un prezzo cosi' spropositato. Nonostante la particolarita' di applicazione la volvola entra a pressione ma avere le corrette misure del diametro interno del tubo su cui va inserita e' fondamentale cosi' come l'ingombro della saracinesca se lo spazio e' angusto. Nel mio caso nonostante avessi le misure precise e la valvola fosse entrata con qualche sforzo ho poi avuto un problema con la saracinesca per cui ho dovuto rendere il prodotto. Nel complesso nonostante il concetto del prodotto sia intelligente la scarsa adattabilita' in fase di esecuzione (a meno che non vi siano le condizioni adatte) e il prezzo molto alto mi hanno fatto propendere per altre soluzioni. Sicuramente si risparmierebbe molto lavoro nel caso in cui la valvola risponda perfettamente alle esigenze specifiche.
Trustpilot
2 weeks ago
2 weeks ago