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1056-12122 Standard Flexible Coupling
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1056 Series · Standard Flexible Coupling
Fernco 1056-12122 Xtra Long PVC Pipe Coupling for Cast Iron, Plastic or Steel to Cast Iron, Plastic or Steel Plumbing Connections
Part # 1056-12122
- Connect various pipe sizes. To choose the right coupling, measure the outside diameter (OD) of your pipe.
- Specs and codes. Conforms to ASTM d5926, c1173, CSA b602.
- Connect various pipe types. The Fernco 1056-12122 coupling connects plastic (PVC, abs, cpvc, smooth wall hdpe), cast iron, copper, steel or lead...
- Trusted and preferred. Proudly manufactured in the united states.
1056 Series Size: 12" x 12", Xtra Long
Connects Cast Iron, Plastic and Steel to Cast Iron, Plastic and Steel
Dimensions
| End 1 pipe OD range | 12.65" to 12.85" |
| End 2 pipe OD range | 12.65" to 12.85" |
| End 1 inside diameter | 12.75" |
| Length | 13.75 in |
| Width | 13.75 in |
| Height | 10.00 in |
| Weight | 11.42 lb |
Product details
Choose the couplings that the pros use for your next drain, waste or vent project. The Fernco 1056-12122 extra long, flexible PVC coupling quickly connects plastic (PVC, cpvc, abs, smooth wall hdpe), cast iron, copper, steel or lead pipes. Installation is as easy as sliding the coupling on and torquing the stainless-steel bands down for a leak-proof connection. Whether you're adding a new laundry sink, replacing rusted cast iron pipe, or adding a new bathroom, Fernco couplers make plumbing projects a breeze. Before you grab the primer and glue - be sure and look for the right Fernco coupling. Fernco couplings have been proudly manufactured in the USA since 1964 and are made of the highest quality elastomeric polyvinyl chloride and corrosion-resistant, rust-proof clamps. With a reputation for quality, innovation, and reliable performance, you can trust Fernco as the global leader in flexible plumbing couplings.
Unmatched quality and performance. Built to last the life of the plumbing system, Fernco couplings are made from elastomeric polyvinyl chloride for a strong, leak-proof fitting that’s resistant to chemicals and sewer gases.
No-mess installation. Fernco couplings are easy to install without the hassle of messy primers, glues and their unwanted odors.
Recommended use. Rated for above ground use
Specifications
| Connection | Mechanical |
| Fitting type | Straight Coupling |
| Flexible | Yes |
| Material | Elastomeric PVC, Stainless Steel |
| Color | Black, Silver |
| Standards | ASTM C1173, ASTM D5926, CSA B602 |
| Application | Above Ground, DWV |
| Max test pressure | 4.3 psi |
| Temperature range | -30°F to 140°F |
Drawings and downloads
Documents
Dimensional drawing
1056-12122, PDF · 106.29 KB
Compare 1056 Series sizes
Cast Iron, Plastic and Steel to Cast Iron, Plastic and Steel
-
- Size
- .75" x .75"
- Pipe OD range
- 0.95" to 1.15"
-
- Size
- 1"
- Pipe OD range
- 1.05" to 1.35"
-
- Size
- 1" x 25"
- Pipe OD range
- 1.40" to 1.70"
-
- Size
- 1.5" x 1.25"
- Pipe OD range
- 1.65" to 2.00"
-
- Size
- 1.5" x 1.5", Standard
- Pipe OD range
- 1.70" to 2.05" / 1.40" to 1.70"
- Strong Back RC
- 1056-150RC
-
- Size
- 1.5" x 1.5", Xtra Long
- Pipe OD range
- 1.70" to 2.05" / 1.40" to 1.70"
- Strong Back RC
- 1056-1502RC
-
- Size
- 2" x 2", Standard
- Pipe OD range
- 2.15" to 2.50" / 1.70" to 1.95"
- Strong Back RC
- 1056-22RC
-
- Size
- 2" x 2", Xtra Long
- Pipe OD range
- 2.35" to 2.40"
- Strong Back RC
- 1056-222RC
-
- Size
- 2" x 15"
- Pipe OD range
- 2.15" to 2.50" / 1.70" to 1.95"
- Strong Back RC
- 1056-215RC
-
- Size
- 2.5" x 1.25"
- Pipe OD range
- 2.50" to 3.10" / 1.52" to 1.72"
- Strong Back RC
- 1056-250/125RC
-
- Size
- 2.5" x 1.5"
- Pipe OD range
- 2.50" to 3.10" / 1.80" to 2.00"
- Strong Back RC
- 1056-250/150RC
-
- Size
- 2.5" x 2"
- Pipe OD range
- 2.70" to 3.00" / 2.28" to 2.48"
- Strong Back RC
- 1056-250/22RC
-
- Size
- 2.5" x 2.5"
- Pipe OD range
- 2.50" to 3.10"
- Strong Back RC
- 1056-250RC
-
- Size
- 3" x 1.5"
- Pipe OD range
- 3.15" to 3.50" / 1.65" to 1.95"
-
- Size
- 3" x 2"
- Pipe OD range
- 3.15" to 3.65" / 2.20" to 2.50"
- Strong Back RC
- 1056-32RC
-
- Size
- 3" x 2.5"
- Pipe OD range
- 3.15" to 3.70" / 2.78" to 2.98"
- Strong Back RC
- 1056-3/250RC
-
- Size
- 3" x 3", Standard
- Pipe OD range
- 3.15" to 3.70" / 3.10" to 3.70"
- Strong Back RC
- 1056-33RC
-
- Size
- 3" x 3", Xtra Long
- Pipe OD range
- 3.40" to 3.60"
- Strong Back RC
- 1056-332RC
-
- Size
- 4" x 1.5"
- Pipe OD range
- 4.00" to 4.50" / 1.75" to 1.95"
-
- Size
- 4" x 2"
- Pipe OD range
- 4.00" to 4.50" / 2.25" to 2.50"
- Strong Back RC
- 1056-42RC
-
- Size
- 4" x 3"
- Pipe OD range
- 4.25" to 4.65" / 3.25" to 3.65"
- Strong Back RC
- 1056-43RC
-
- Size
- 4" x 4", 1056-44
- Pipe OD range
- 4.10" to 4.65"
- Strong Back RC
- 1056-44RC
-
- Size
- 4" x 4", 1056-442
- Pipe OD range
- 4.15" to 4.35"
- Strong Back RC
- 1056-442RC
-
- Size
- 4" x 4", 1056-443
- Pipe OD range
- 4.25" to 4.45"
- Strong Back RC
- 1056-443RC
-
- Size
- 5" x 4"
- Pipe OD range
- 5.25" to 5.65" / 4.00" to 4.50"
- Strong Back RC
- 1056-54RC
-
- Size
- 5" x 5", Standard
- Pipe OD range
- 5.10" to 5.70"
- Strong Back RC
- 1056-55RC
-
- Size
- 5" x 5", Xtra Long
- Pipe OD range
- 5.50" to 5.50"
- Strong Back RC
- 1056-552RC
-
- Size
- 6" x 4"
- Pipe OD range
- 6.25" to 6.85" / 4.10" to 4.60"
- Strong Back RC
- 1056-64RC
-
- Size
- 6" x 5"
- Pipe OD range
- 6.10" to 6.65" / 5.15" to 5.65"
- Strong Back RC
- 1056-65RC
-
- Size
- 6" x 6", Standard
- Pipe OD range
- 6.30" to 6.80"
- Strong Back RC
- 1056-66RC
-
- Size
- 6" x 6", Xtra Long
- Pipe OD range
- 6.30" to 6.80"
- Strong Back RC
- 1056-662RC
-
- Size
- 8" x 4"
- Pipe OD range
- 8.05" to 8.60" / 4.40" to 4.60"
- Strong Back RC
- 1056-84RC
-
- Size
- 8" x 6"
- Pipe OD range
- 8.05" to 8.60" / 6.10" to 6.50"
- Strong Back RC
- 1056-86RC
-
- Size
- 8" x 8", Standard
- Pipe OD range
- 8.00" to 8.75"
- Strong Back RC
- 1056-88RC
-
- Size
- 8" x 8", Xtra Long
- Pipe OD range
- 8.00" to 8.75"
- Strong Back RC
- 1056-882RC
-
- Size
- 10" x 8"
- Pipe OD range
- 9.60" to 10.60" / 7.85" to 8.65"
- Strong Back RC
- 1056-10-8RC
-
- Size
- 10" x 10", Standard
- Pipe OD range
- 10.10" to 10.80"
- Strong Back RC
- 1056-1010RC
-
- Size
- 10" x 10", Xtra Long
- Pipe OD range
- 10.65" to 10.85"
- Strong Back RC
- 1056-10102RC
-
- Size
- 12" x 10"
- Pipe OD range
- 11.85" to 12.75" / 10.00" to 10.80"
- Strong Back RC
- 1056-1210RC
-
- Size
- 12" x 12", Standard
- Pipe OD range
- 12.00" to 12.75"
- Strong Back RC
- 1056-1212RC
-
1056-12122 (this part)
- Size
- 12" x 12", Xtra Long
- Pipe OD range
- 12.65" to 12.85"
- Strong Back RC
- 1056-12122RC
-
- Size
- 14" x 14"
- Pipe OD range
- 13.00" to 14.50"
- Strong Back RC
- 1056-1414RC
-
- Size
- 15" x 10"
- Pipe OD range
- 15.50" to 16.50" / 10.50" to 10.70"
-
- Size
- 15" x 12"
- Pipe OD range
- 15.50" to 16.35" / 11.75" to 12.60"
- Strong Back RC
- 1056-1512RC
-
- Size
- 15" x 15"
- Pipe OD range
- 14.50" to 15.75"
- Strong Back RC
- 1056-1515RC
-
- Size
- 18" x 18"
- Pipe OD range
- 17.50" to 19.00"
- Strong Back RC
- 1056-1818RC
-
- Size
- 21" x 21"
- Pipe OD range
- 20.50" to 22.50"
- Strong Back RC
- 1056-2121RC
-
- Size
- 24" x 24"
- Pipe OD range
- 23.00" to 25.00"
- Strong Back RC
- 1056-2424RC
-
- Size
- 27" x 27"
- Pipe OD range
- 26.20" to 28.20"
- Strong Back RC
- 1056-2727RC
| Part | Size | Pipe OD range (end 1 / end 2) | Strong Back RC Shielded version |
|---|---|---|---|
| 1056-075 | .75" x .75" | 0.95" to 1.15" | |
| 1056-100 | 1" | 1.05" to 1.35" | |
| 1056-125 | 1" x 25" | 1.40" to 1.70" | |
| 1056-150/125 | 1.5" x 1.25" | 1.65" to 2.00" | |
| 1056-150 | 1.5" x 1.5" Standard | 1.70" to 2.05" / 1.40" to 1.70" | 1056-150RC |
| 1056-1502 | 1.5" x 1.5" Xtra Long | 1.70" to 2.05" / 1.40" to 1.70" | 1056-1502RC |
| 1056-22 | 2" x 2" Standard | 2.15" to 2.50" / 1.70" to 1.95" | 1056-22RC |
| 1056-222 | 2" x 2" Xtra Long | 2.35" to 2.40" | 1056-222RC |
| 1056-215 | 2" x 15" | 2.15" to 2.50" / 1.70" to 1.95" | 1056-215RC |
| 1056-250/125 | 2.5" x 1.25" | 2.50" to 3.10" / 1.52" to 1.72" | 1056-250/125RC |
| 1056-250/150 | 2.5" x 1.5" | 2.50" to 3.10" / 1.80" to 2.00" | 1056-250/150RC |
| 1056-250/22 | 2.5" x 2" | 2.70" to 3.00" / 2.28" to 2.48" | 1056-250/22RC |
| 1056-250 | 2.5" x 2.5" | 2.50" to 3.10" | 1056-250RC |
| 1056-315 | 3" x 1.5" | 3.15" to 3.50" / 1.65" to 1.95" | |
| 1056-32 | 3" x 2" | 3.15" to 3.65" / 2.20" to 2.50" | 1056-32RC |
| 1056-3/250 | 3" x 2.5" | 3.15" to 3.70" / 2.78" to 2.98" | 1056-3/250RC |
| 1056-33 | 3" x 3" Standard | 3.15" to 3.70" / 3.10" to 3.70" | 1056-33RC |
| 1056-332 | 3" x 3" Xtra Long | 3.40" to 3.60" | 1056-332RC |
| 1056-415 | 4" x 1.5" | 4.00" to 4.50" / 1.75" to 1.95" | |
| 1056-42 | 4" x 2" | 4.00" to 4.50" / 2.25" to 2.50" | 1056-42RC |
| 1056-43 | 4" x 3" | 4.25" to 4.65" / 3.25" to 3.65" | 1056-43RC |
| 1056-44 | 4" x 4" 1056-44 | 4.10" to 4.65" | 1056-44RC |
| 1056-442 | 4" x 4" 1056-442 | 4.15" to 4.35" | 1056-442RC |
| 1056-443 | 4" x 4" 1056-443 | 4.25" to 4.45" | 1056-443RC |
| 1056-54 | 5" x 4" | 5.25" to 5.65" / 4.00" to 4.50" | 1056-54RC |
| 1056-55 | 5" x 5" Standard | 5.10" to 5.70" | 1056-55RC |
| 1056-552 | 5" x 5" Xtra Long | 5.50" to 5.50" | 1056-552RC |
| 1056-64 | 6" x 4" | 6.25" to 6.85" / 4.10" to 4.60" | 1056-64RC |
| 1056-65 | 6" x 5" | 6.10" to 6.65" / 5.15" to 5.65" | 1056-65RC |
| 1056-66 | 6" x 6" Standard | 6.30" to 6.80" | 1056-66RC |
| 1056-662 | 6" x 6" Xtra Long | 6.30" to 6.80" | 1056-662RC |
| 1056-84 | 8" x 4" | 8.05" to 8.60" / 4.40" to 4.60" | 1056-84RC |
| 1056-86 | 8" x 6" | 8.05" to 8.60" / 6.10" to 6.50" | 1056-86RC |
| 1056-88 | 8" x 8" Standard | 8.00" to 8.75" | 1056-88RC |
| 1056-882 | 8" x 8" Xtra Long | 8.00" to 8.75" | 1056-882RC |
| 1056-10-8 | 10" x 8" | 9.60" to 10.60" / 7.85" to 8.65" | 1056-10-8RC |
| 1056-1010 | 10" x 10" Standard | 10.10" to 10.80" | 1056-1010RC |
| 1056-10102 | 10" x 10" Xtra Long | 10.65" to 10.85" | 1056-10102RC |
| 1056-1210 | 12" x 10" | 11.85" to 12.75" / 10.00" to 10.80" | 1056-1210RC |
| 1056-1212 | 12" x 12" Standard | 12.00" to 12.75" | 1056-1212RC |
| 1056-12122 (this part) | 12" x 12" Xtra Long | 12.65" to 12.85" | 1056-12122RC |
| 1056-1414 | 14" x 14" | 13.00" to 14.50" | 1056-1414RC |
| 1056-1510 | 15" x 10" | 15.50" to 16.50" / 10.50" to 10.70" | |
| 1056-1512 | 15" x 12" | 15.50" to 16.35" / 11.75" to 12.60" | 1056-1512RC |
| 1056-1515 | 15" x 15" | 14.50" to 15.75" | 1056-1515RC |
| 1056-1818 | 18" x 18" | 17.50" to 19.00" | 1056-1818RC |
| 1056-2121 | 21" x 21" | 20.50" to 22.50" | 1056-2121RC |
| 1056-2424 | 24" x 24" | 23.00" to 25.00" | 1056-2424RC |
| 1056-2727 | 27" x 27" | 26.20" to 28.20" | 1056-2727RC |
Also for above ground
Proflex shielded couplings
A stainless steel shield over the coupling for transitions between cast iron, plastic, steel and copper drain lines.
See Proflex
Made in the USA
Made for pros by pros
The 1056-12122 is made in the USA. Fernco has built flexible couplings in Davison, Michigan since 1964, by people who take the work as seriously as you do.
Meet the team
Got questions about the 1056-12122?
Send us a message and the right team will reply, usually within one business day. Or call us, Monday to Friday, 8:00 am to 5:00 pm ET.