MAINLINE ML-FR4 Backwater FIO Valve, 1/2 in, Lead-Free
- Manufacturer: Mainline
- Brand Name: MAINLINE
- Part#: MNLML-FR4
- MPN: ML-FR4
- Min. Order Qty: 1
- Qty. Interval: 1
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Availability:
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The newly reintroduced ML-FR4 ABS automatic backwater valve is a great choice for retrofit situations where you have a limited amount of slope to work with.
MAINLINE Backwater FIO Valve, 1/2 in Nominal, ABS Body, Lead-Free, 4 in OD
| Body Material | : | ABS |
| Dimensions | : | 4 in OD |
| Lead-Free/Contains Lead | : | Lead-Free |
| Nominal Size | : | 1/2 in |
- This is a normally open design, automatic backwater valve that permits the free circulation of air throughout the plumbing system, allowing gases to move just as if the valve wasn't even there
- The valve will close automatically when sewage back-up occurs, reducing the risk of sewage backflow throughout the dwelling
- The ML-FR4 is designed to be installed in building main lines to prevent back-up through floor drain, shower drain, toilet and sink drain
- It closes automatically when the municipal sewer line or septic system starts to back-up or a reverse flow occurs
- The clear plastic lid allow for easy visual inspection and accessibility for cleaning
Specification Sheet