6" Waterless Trap Seal
Fits 6" (DN150) drain outlets. Flow rates exceeding 550 L/min. Drop-in install, no tools required.
Green Drain recommends replacing the seal every 6 months in high-use drains, every 12 months in low-use drains. Per-day pricing reflects this cycle.
How it works.
Green Drain is a one-way valve for your floor drain. Water flows down and out. Nothing comes back up.
Inside sits a soft silicone valve. Running water pushes it open; the moment the water stops, it closes and seals tight against sewer gas, odors, and pests. Because it seals with silicone instead of water, it never dries out the way an ordinary trap can, even when the drain goes weeks without use.
It fits 6-inch drains, 150 to 156 mm, and drops in by hand. No tools, no plumber, installed in seconds.
Installs in under 60 seconds. No tools.
Remove the drain grate
Lift the existing drain grate or strainer from the floor drain body.
Drop in the GD6
Place the Green Drain into the drain body or hub opening.
Press gently to seat
Recess 2 to 4 inches below the pipe top. The silicone gasket creates a snug seal against the pipe walls.
Replace the grate
Put the grate back. Done. Full coverage for your largest drains.
Maximum capacity. Proven performance.
The GD6 is the largest waterless trap seal in the product line. Independently tested and certified.
Specify Green Drain in your next project.
Download the Revit family set for every Green Drain model, and find us listed in BSD SpecLink and MasterSpec.
Technical Specifications
| Model | GD6 |
| Pipe Size | 6" (150-156 mm) / DN150 |
| Height | 51 mm |
| Housing Diameter (no gasket) | 150.2 mm (5.400"), bottom 144.2 mm (5.677") |
| Housing with Gasket | 159 mm (6.260") wide x 50.8 mm (1.462") |
| Housing Material | ABS Plastic |
| Valve Material | Silicone Rubber |
| Seal Material | Silicone Gasket |
| Flow Rate | ≥550 L/min |
| Patents | Multiple US & international patents |
Industries we serve.
The GD6 fits 6" (DN150) drain outlets, the largest pipe size in the line.
Certifications and compliance.
cUPC Listed
IAPMO File 9301
ASSE 1072-2020 Standard
Barrier-type trap seal performance standardEvaluated under IAPMO R&T cUPC File No. 9301
CE / ETA-18/0536
European Technical Assessment
NSF/ANSI 2
Food Equipment Certified
HACCP International
Food Safe endorsement (Certificate RG-04)
WaterMark Australia
WM-022837 (DN80)
Prop 65 Compliant
California compliance declaration
SGS Aerosol-Retention Test
Retained over 99.9% of an aerosolized MS2 bacteriophage viral surrogate
DTI Test Report
Danish Technological Institute (Rapport 957187)
IAPMO R&T
Certifying body for the cUPC listing
VA Godkendelse
Danish Plumbing Approval
Ready to protect your drains?
Drop-in install. No tools. Works from day one.