Diameter: 4″, 110 mm, 6″, 160 mm
Prevents the return of sewage and the entry of rodents.
- Easy, tool-free installation.
- No corrosion or wear.
- Excellent flow performance.
- Body made of high resistance PVC.
- Easy opening and cleaning flaps.
- Its internal parts are easy to maintain.
- The non-return check valve also operates as an inspection box.
- It has a level as a guide in the installation.
