Industrial-grade protection for large-format drains. 103.3 GPM flow capacity, 610 Pa pressure resistance. Drop-in install, no tools required.
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Four flexible silicone sealing ribs form a one-way valve. High-volume drainage flows pass through under gravity. When flow stops, the ribs close to create a continuous mechanical seal that blocks sewer gas, odors, and pests from entering the occupied space above.
The flexible design accommodates pipe diameters from 120 to 135 mm. Despite its size, installation is the same as the smaller models: remove the grate, drop in, seat the gasket, replace the grate.
Independently tested by DTI. The GD5 delivers one of the highest pressure resistance ratings in the entire product line.
| Model | GD5 |
| Pipe Size | 5" (120-135 mm) / DN125 |
| Height | 42 mm |
| Housing Diameter (no gasket) | 96.5 mm (3.878"), bottom 100.6 mm (3.961") |
| Housing with Gasket | 134.80 mm (5.310") wide x 42.21 mm (1.662") |
| Housing Material | ABS Plastic |
| Valve Material | Silicone Rubber |
| Seal Material | Silicone Gasket |
| Flow Rate (Level C) | 71.32 GPM |
| Flow Rate (Level U) | 391 L/min |
| Flow Capacity (DTI) | 276.3 L/min (4.0 L/s) |
| Pressure Resistance (DTI) | 610 Pa |
| Patents | US 7,900,288 · US 9,027,172 |
Lift the existing drain grate or strainer from the floor drain body.
Place the Green Drain into the drain body or hub opening.
The silicone gasket creates a snug seal against the pipe walls.
Put the grate back. Done. A full industrial floor in an afternoon.
Handy accessories for Green Drain owners.
Purpose-built for quick, clean removal of any Green Drain. Simply hook and lift.
$6.95
Identify drain sizes in the field. Measure the inside diameter to find the right model.
$6.95
The 5" floor drain is standard in heavy-duty industrial environments where high-volume drainage and maximum pressure resistance are required.
IAPMO File 9301
Trap seal performance standard
European Technical Assessment
Food Equipment Certified
Certificate RG-04
WM-022837 (DN80)
California Material Safety
>99.9% blockage of viral aerosols
Rapport 957187
Certified Testing Lab
Danish Plumbing Approval
Drop-in install. No tools. Works from day one.
