SAB Supreme Compression Tee 20mm (PN16)
The SAB Supreme Compression Tee 20mm is a commercial-grade, heavy-duty three-way connector designed to create a completely secure, leak-proof T-junction in 20mm PE (polyethylene) water lines. Engineered in Italy by SAB S.p.A., this high-performance fitting is ideal for mainline networks feeding water from your tap or pump to localized irrigation zones, greenhouses, or garden layouts.
Featuring SAB’s innovative Poseidon Balance Sealing System, the Supreme series provides maximum structural safety by balancing the sealing action directly against the pipe as the nut is tightened. This unique mechanism compensates for minor pipe scratches or imperfections, ensuring an airtight grip without requiring chemical solvents or gluing.
Key Features & Benefits
- PN16 Pressure Rated: Built to withstand continuous operating pressures up to 16 bar (232 psi), offering complete protection against pressure spikes, water hammer, and vacuum conditions.
- Poseidon Sealing System: Patented technical design ensures exceptional hydraulic tightness, tightly locking onto MDPE, HDPE, and LDPE pipes alike.
- Premium Material Construction: Manufactured from virgin Polypropylene (PP-B) with a copolymer polyacetal split ring (POM) and heavy-duty NBR rubber seals for maximum structural longevity.
- Weather & Chemical Proof: Highly resistant to heavy winter frosts, underground soil shifting, UV degradation (grade 8 ASTM D2565), and liquid fertilisers.
- Fast, Tool-Free Assembly: Simple mechanical design allows for incredibly fast manual installation – just push the pipe to the pipe-stop and tighten the nut ring.
- Removable & Reusable: The fitting can be unscrewed, adjusted, and entirely repurposed across different sections of your system over time.
Technical Specifications
- Fitting Type: Equal Tee Compression Junction (20mm x 20mm x 20mm)
- Pipe Compatibility: 20mm Outside Diameter (O.D.) MDPE, LDPE, HDPE, and PEX-a pipes
- Pressure Rating: PN16 (16 Bar / 232 PSI)
- Working Temperature: -10°C to +45°C
- Body/Nut Material: High-grade virgin copolymer Polypropylene (PP-B)
- Gasket: NBR Conical Gasket (70sh hardness)
- Approvals: WRAS Approved (UK), DVGW (Germany), IIP (Italy), Kiwa (Holland).
Applications
The SAB Supreme 20mm Tee is widely used by professional landscapers and agricultural workers across the UK for:
- Splitting main water feed lines into multiple irrigation zones.
- Connecting domestic garden watering setups and sports turf sprinkler systems.
- Creating stable junctions in cold water drinkable lines or commercial polytunnels.

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