Fits 4" (DN100) drain outlets. ≥340 L/min flow capacity. Drop-in install, no tools required.
Inc. GST. Free shipping on orders over $100 AUD. $10 flat rate standard shipping.
Four flexible silicone sealing ribs form a one-way valve. Water passes through under gravity. Even high-volume wash-down flows move through without restriction.
When flow stops, the ribs close to create a continuous mechanical seal that blocks sewer gas, odours, and pests from entering the occupied space above.
The valve opens under the weight of just 32 grams, approximately 4 oz of water. The flexible design accommodates pipe diameters from 102 to 110 mm.
Lift the existing drain grate or strainer from the floor drain body.
Place the Green Drain into the drain body or hub opening.
Recess 2 to 4 inches below the pipe top. The silicone gasket creates a snug seal against the pipe walls.
Put the grate back. Done. A full commercial floor in an afternoon.
Independently tested by IAPMO R&T. These are lab-verified results from an accredited third-party testing laboratory.
Download the Revit family set for every Green Drain model and find us listed in MasterSpec.
| Model | GD4 |
| Pipe Size | 4" (102-110 mm) / DN100 |
| Height | 51 mm |
| Housing Diameter (no gasket) | 88.39 mm (3.480"), bottom 93.47 mm (3.680") |
| Housing with Gasket | 108.56 mm (3.274") wide x 50.7 mm (1.996") |
| Housing Material | ABS Plastic |
| Valve Material | Silicone Rubber |
| Seal Material | Silicone Gasket |
| Flow Rate | ≥340.00 L/min |
| ASSE 1072 Opening Force | 32 grams |
| ASSE 1072 Cycle Life | >2,500 cycles |
| ASSE 1072 Evaporation Reduction | >96% |
| Pressure Resistance (DTI) | >400 Pa |
| WaterMark License | WM-022837 (DN100) |
| Patents | Multiple US & international patents |
Green Drain is installed across a wide range of facilities.
WM-022837 (DN100)
Barrier-type trap seal performance standardEvaluated under IAPMO R&T cUPC File No. 9301
Food Equipment Certified
Certificate RG-04
European Technical Assessment
>99.9% blockage of viral aerosols
Rapport 957187
Certified Testing Lab
Drop-in install. No tools. Works from day one.
