EK-Tube ZMT Matte Black 16/10mm
Product EAN: 3830046999207Industrial-grade EPDM rubber tubing in matte black, 9.5 mm inner / 15.9 mm outer (3/8" ID / 5/8" OD). Plasticizer-free for long-life loops with no gunking, tight bend radius, and broad coolant compatibility.
- Type
- tube
- Thread / tube size
- 10/16mm
Plasticizer-Free EPDM Soft Tubing for Maintenance-Free Loops
EK-Tube ZMT is a high-quality EPDM rubber tubing engineered specifically for liquid cooling loops in workstation and server deployments. Unlike most PVC and PUR tubing, EPDM does not suffer from plasticizer leaching — the chemical migration that causes deposits, blockages, and gradual flow restriction in conventional tubing over time.
The 9.5/15.9 mm (3/8" / 5/8") cross-section is a workstation-loop standard, compatible with EK-ACF and EK-Quantum Torque STC 10/16 series compression fittings. The matte-black finish hides routing imperfections and reads cleanly inside professional chassis. EPDM softness allows a tight bend radius for compact loops without kinking.
Three design decisions worth calling out
EPDM Industrial-Grade Rubber
EPDM is the same rubber chemistry used in automotive cooling systems and industrial process plumbing — chosen for its long-term stability and compatibility with corrosion inhibitors and biocides found in enterprise coolants. It does not contain the plasticizers that cause deposits in PVC and PUR tubing.
3.2 mm Wall on 9.5 / 15.9 mm Bore
The 3.2 mm wall provides the structural rigidity required to maintain the 5/8" OD under standard compression-fitting clamp loads while preserving inner-bore flow at 3/8". The wall is uniform along the length, which keeps the bend behaviour predictable for hand-routed loops.
Matte Black, Non-UV-Reactive
Non-reflective matte finish hides routing irregularities and reads as a finished cable run inside a chassis. Non-UV-reactive, so the tubing stays optically neutral under any chassis lighting and does not introduce a colour cast into the loop.
Full datasheet
| Inner diameter | 9.5 mm (3/8") |
| Outer diameter | 15.9 mm (5/8") |
| Wall thickness | 3.2 mm |
| Material | EPDM industrial-grade rubber |
| Color | Matte black, non-UV-reactive |
| Operating temperature range | -30 °C to +110 °C |
| Plasticizer content | None |
| Coolant compatibility | All widely-used water-cooling coolants, including the full EK-CryoFuel range |
| Fitting compatibility | 10/16mm compression fittings on G1/4" thread |
| Sold per | Meter (cutoff) or 3 m retail pack |
| EAN (3 m retail pack) | 3830046999214 |
All figures measured at supplier level. Third-party independent measurement reports are available on request under NDA.
Fitting Compatibility
Designed for 10/16mm (3/8" / 5/8") compression fittings on standard G1/4" threaded ports. Verified compatible with EK-ACF and EK-Quantum Torque STC 10/16 fitting series, and with most third-party 10/16 compression fittings. The 9.5 mm inner diameter accepts standard 10 mm-class coolant flow paths without restriction at typical workstation flow rates.
Shipped contents
- · EK-Tube ZMT Matte Black tubing — sold per meter (cutoff) or in 3 m retail pack
- · Retail pack supplied coiled for shipping; bulk lengths in straight cuts
Other related products
EPDM Soft Tubing for Maintenance-Free Workstation Loops
Pair with EK or EK-Pro 10/16 compression fittings, EK-CryoFuel coolant, and the rest of the EK-Pro catalogue to build a workstation loop with predictable working life and minimal long-term maintenance.