

🔗 Connect with confidence—flexibility meets durability in every seal!
The Fernco 1056-64 Flexible Coupling (6" x 4") is a high-quality, USA-made plumbing connector designed for fast installation and reliable sealing. Compatible with multiple pipe materials including cast iron, PVC, copper, lead, and steel, it’s underground rated and perfect for vent, drain, sewer, and waste piping. Its durable construction and precision fit make it a trusted choice for professionals seeking versatile and long-lasting pipe connections.
| Brand | Fernco |
| Color | Black |
| Connector Type | Coupling |
| Item dimensions L x W x H | 4.8 x 6.81 x 5.56 inches |
| Material | Polyvinyl Chloride |
| Size | 6" x 4" |
M**D
Work well, fit 4 inch pvc, great value
These 4”x6” runner boots work great. I am using them at the top inlets of a water harvesting system that utilizes 4 inch -pvc pipe schedule 40. The 4 inch end of the boot slips onto the pvc with no problem. The boot comes with two stainless steel clamps that fit each end of it. I used the 6 inch end to secure screen to filter out debris and keep it from entering the system. The boots are durable, the size is accurate, and they are a good value for the money. I would recommend them.
M**L
Dust collector adaptor
Used this to drop my Rockler dust right collector from the twin branch to a single pipe for the cyclone. The 6" section was far too big but the strapping pulled it down tight and the seal is great. For my application this worked perfectly.
E**E
Boot dimension completes repair
Attempting to repair a damaged sewer pipe I bought a 6”x4” reducer from a plumbing store and I ordered 1 thru Amazon. The sewer pipe diameter was larger than the 6” side of the boot. After several attempts of trying to install the boot from the plumbing store I was in a dilemma until the boot I ordered from Amazon was delivered. The dimensions are slightly larger in size and that made the difference installing the boot and completing the repair. I would definitely order this product over any product from a plumbing store.
S**B
Well made, good materials, will last a long time.
This worked perfectly for my needs. I built a water proof case for my cold air intake so I can custom build a snorkle system. Thus ensured a good fit between the 6" pvc tube and the 90 degree pvc. It will be water tight, I have no doubt. It was well made, thick supple rubber and good screw in tightening loops.
M**T
FERNCO or bust
If you need a fitting, FERNCO is the only way to go. Measure right and you cant be disappointed. These things last for decades before needing replaced.
A**R
Fenco is a great product just wrong size
This is not the correct size for a radon reducer. It should be a Fenco fitting for 4 inch to pvc on on side and the size that fits a 4 inch CONCRETE PIPE !! I measures about 5 and appropriately 3/8 inches I.D. A 6 to 4 Fenco is to big to attach to the radon motor flange by 3\4 inches. I ordered the Fenco from a plumbing shop. No one will have in stock. Its an odd size fitting that Radon Away uses and probably planned that way. Part was $11.69 including shipping. Fenco is a great product just wrong size. AM
J**O
Boot
Excellent product will definitely try again. I fully recommend this.
H**R
Seems to be good
As advertised seems good