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Fernco 1056-150/125 1-1/2 in. x 1-1/4 in. 4.3 psi Flexible PVC Clamp Reducer Coupling, Black
Manufacturer Resources
Product Specs
- Department:
- Plumbing
- Product Group:
- Plumbing
- Product Subgroup:
- Pipe Fittings
- Product Type:
- Flexible Coupling
Fernco 1056-150/125 – Frequently Asked Questions
1) Will a Fernco 1056-150/125 coupling join a 1-1/2 inch drain line to a 1-1/4 inch trap arm?
That is exactly what it does. The 1056-150/125 is a reducing flexible coupling with a 1-1/2 inch end and a 1-1/4 inch end, so it takes a 1-1/2 inch line down to 1-1/4 inch in one fitting instead of a reducing bushing plus a rigid adapter. Both ends slip over the pipe and clamp down, so there is no solvent weld and no torch involved.
2) Can a Fernco flexible reducer coupling be used on a pressurized water line?
No. The 1056-150/125 carries a 4.3 psi rating, which is a drain, waste and vent fitting rating, not a supply-line one. Use it on gravity drainage, waste and vent piping. Anything under system water pressure needs a rated pressure fitting.
3) Do I need to buy clamps separately for the Fernco 1056-150/125?
No, it is a clamp coupling, so the clamps are part of the fitting. You tighten them onto each pipe end with a nut driver or a torque screwdriver. No primer, no cement, no dry fit.
4) Is a flexible PVC coupling the right way to tie into an existing drain line, or should I use a solvent-weld reducer?
A solvent-weld reducer is the cleaner choice when you are building new PVC and both ends are the same material and you can rotate the pipe. The 1056-150/125 flexible coupling earns its place in repair and retrofit work: it makes up in tight spots where nothing can be spun, it tolerates slight misalignment between the 1-1/2 inch and 1-1/4 inch runs, and it can be broken loose later without cutting the pipe. That flexibility is also why it is limited to 4.3 psi drainage service.
5) Can I use the Fernco 1056-150/125 on a vent line as well as a waste line?
Yes. As a DWV-rated flexible coupling at 4.3 psi, the 1056-150/125 works on waste, drain or vent piping where a 1-1/2 inch line needs to meet a 1-1/4 inch one. Vent transitions are a common use since nothing there sees pressure.
How fast can I get the Fernco 1056-150/125 delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Fernco 1056-150/125 come with a warranty?
Absolutely. The Fernco 1056-150/125 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Fernco 1056-150/125?
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