Thank you for visiting Bartle & Gibson. If you encounter any issues or have feedback to share, please email us at webservice@bartlegibson.com. Your input is greatly appreciated!
content loaded
MAINLINE ML-FR4 4 FIO-DRAIN VLV
MFR Part #: ML-FR4
SKU #: 0176473
Brand: MAINLINE
UPC: 400000125381
MAINLINE ML-FR4 Backwater FIO Valve, 1/2 in, Lead-Free
CSA Certified
Product Details
Attributes
Features
Resources
MAINLINE Backwater FIO Valve, 1/2 in Nominal, ABS Body, Lead-Free, 4 in OD
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.
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
Product Details
MAINLINE Backwater FIO Valve, 1/2 in Nominal, ABS Body, Lead-Free, 4 in OD
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.
Attributes
Body Material: ABS
Dimensions: 4 in OD
Lead-Free/Contains Lead: Lead-Free
Nominal Size: 1/2 in
Features
- 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