Menu
Codes & Standards
Tested. Listed. Accepted. Fernco couplings and connectors are tested to ASTM, CSA and CISPI standards and listed by IAPMO, ICC-ES and CSA Group. Find your product, then verify the listing at the source.
Listed by the agencies inspectors trust
Each link opens the agency's own directory, so you can confirm a listing without taking our word for it.
IAPMO
International Association of Plumbing and Mechanical Officials
Listings referenced by the Uniform Plumbing Code.
ICC-ES
International Code Council Evaluation Service
PMG listings used with the International Plumbing and Residential Codes.
CSA
CSA Group, Canadian Standards Association
Certified to CSA B602 for use under the National Plumbing Code of Canada.
Accepted under the model codes
IPC
International Plumbing Code
UPC
Uniform Plumbing Code
IRC
International Residential Code
NPC
National Plumbing Code of Canada
Find the standard for your product
| Product | Category | Standards |
|---|
No products match. Try a shorter search, or clear the filter.
What each standard covers
Plain-language summaries. The full text is published by each standards body.
| Standard | What it covers |
|---|---|
| ASTM C 1173 | Flexible transition couplings for underground piping systems. |
| ASTM C 1460 | Shielded transition couplings joining dissimilar DWV pipe and fittings above ground. |
| ASTM C 1277 | Shielded couplings joining hubless cast iron soil pipe and fittings. |
| ASTM C 1540 | Heavy duty shielded couplings joining hubless cast iron soil pipe and fittings. |
| ASTM C 564 | Rubber gaskets for cast iron soil pipe and fittings. |
| ASTM D5926 | PVC gaskets for DWV, sewer, sanitary and storm plumbing systems. |
| ASTM A 1045 | Flexible PVC gaskets used to connect toilets to the sanitary drainage system. |
| ASTM C 923 | Resilient connectors between concrete manhole structures, pipes and laterals. |
| CISPI 310 | Couplings for use with hubless cast iron soil pipe and fittings. |
| CSA B602 | Mechanical couplings for drain, waste, vent and sewer pipe. |
| AIS / BABA | American Iron and Steel and Build America, Buy America requirements for federally funded water projects. See which product categories comply or the EPA AIS requirement. |
AIS and BABA compliance
Which product categories meet American Iron and Steel and Build America, Buy America requirements for federally funded water projects. Effective April 7, 2026.
| Product category | AIS / BABA |
|---|---|
| Standard Flexible Couplings | Compliant Excludes 16 in. and above |
| Proflex Specialty Couplings | Compliant |
| Strong Back RC Couplings | Compliant Excludes 16 in. and above, and 5000 Series |
| XL Couplings | Compliant |
| Tee and Wye Tap Saddles | Compliant Excludes Tap Saddle Pressure Kit |
| Qwik Tees and Ells | Compliant |
| Plastic Socket Couplings | Compliant |
| Pipe Sleeves | Compliant |
| Expansion Joints | Compliant |
| Eccentric Bushings and Couplings | Compliant Excludes 16 in. and above |
| Water Well Debris Traps | Compliant Excludes 16 in. and above |
| Western Series Center Stop | Compliant |
| Qwik Caps | Compliant |
| Drain and Trap Connectors | Compliant |
| HULK | Not compliant |
| Chemical Couplings | Not compliant |
| Dual Puddle Flange | Not compliant |
| QwikSeal | Not compliant |
| No Hub Couplings | Not compliant |
| Ultra-Rib Sewer Pipe Couplings | Not compliant |
| Large Diameter Couplings | Not compliant |
| Custom Large Diameter Debris Caps | Not compliant |
| Flap Valves | Not compliant |
Standard Flexible Couplings and Strong Back RC Couplings (worm gear 1000 Series) in 16 in. and above are excluded from the compliant list, but remain available under the 6000 Series. Confirm the current list before specifying: AIS and BABA scope list (PDF).
International approvals
Held outside North America. Contact your regional Fernco office for certificates.
United Kingdom
BSI Kitemark, Construction
WIS 4-41-01, Certificate KM 33192
United Kingdom
BSI Kitemark, Clay Pipe
BS EN 295, Certificate KM 22943
Germany
DIN
Denmark
Godkendelse
Finland
Ympäristöministeriön tyyppihyväksyntäpäätös
Ministry of the Environment type approval
Norway
Godkjenningsnemnda for sanitærmateriell
Sweden
Typgodkännandebevis
Type approval certificate
New Zealand
BRANZ Appraisal Certificate
Australia / New Zealand
AS/NZS 4327
Documents for submittals
AIS and BABA scope list
(opens in a new tab)
PDF, effective April 7, 2026
AIS / BABA compliance letters
Request a letter for a federally funded project
Dimensional drawings
By product line
Flap valve documents
Cut sheets and submittals
Member, American Supply Association
Need a listing, letter or certificate?
Our technical team will send what you need for a spec or submittal, usually the same business day.