Thermaltake

Thermaltake T1000 Red Transparent Water Cooling Solution

4.6 (477 reviews)

Low-viscosity, anti-corrosive coolant that flows 26% easier than competing solutions to keep your loop running clean.

$19.99*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Thermaltake T1000 is a pre-mixed, transparent water cooling solution engineered for custom PC loops where flow efficiency and long-term fluid stability matter. At 20°C, its viscosity measures 26.4% lower than comparable coolants — a meaningful difference in loops with restrictive microfin CPU blocks or slim radiators where pump head pressure is a limiting factor. The anti-precipitation formula is designed to prevent the particulate fallout that plagues many colored coolants after a few months of thermal cycling, and the anti-corrosive chemistry protects copper, brass, and nickel-plated components without requiring separate additives. The 1000 ml capacity is pre-mixed and ready to pour, eliminating the concentration guesswork of dilutable concentrates.

This fluid is built for enthusiast builders running custom hard-line or soft-tube loops who want color without compromising their maintenance intervals. The red transparent finish holds its saturation well over a 12-month cycle, and it can be blended with Thermaltake's TT Premium Concentrate Dyes for custom color matching. In practical terms, the T1000 performs thermally on par with distilled water and biocide, which is the gold standard — you are choosing it for loop protection, visual quality, and reduced maintenance friction rather than raw thermal gain. One bottle fills most standard dual-radiator builds with enough headroom for air bleeding, though triple-radiator builds will want a second bottle on hand.

Key Features

Clearly Colorful - comes in 7 transparent colors red blue purple orange acid Green green and yellow Our formula ensures color saturation stability and duration

Make it unique - Pair with TT Premium Concentrate Dyes (P/N cl-w221-os00sw-a) To create custom colors for any build theme

Better formula for better system - The new formula minimizes the possibility for precipitation to ensure clear water cooling solution flow for your system

Flow like pure water - t1000’s low viscosity enables its effective flow At 20°C T1000 water cooling solution has 26 4% lower viscosity than other water cooling solution and 25 8% lower at 40°C

Anti-corrosive solution - T1000 is non-flammable and provides great protection for the entire cooling system from corrosion

2 year

Specifications

Brand
Thermaltake
Model
CL-W245-OS00RE-A
Capacity
1000 ml
Color
Red (Transparent)
Viscosity
Low (26.4% lower than competitors at 20°C; 25.8% lower at 40°C)
Properties
Anti-corrosion, anti-freeze, anti-precipitation
Hazardous Component
1,2-Propanediol (<6%)
Compatibility
Copper, brass, nickel, acrylic, PETG tubing

Pros & Cons

👍 Pros

  • Viscosity measures 26.4% lower than competitors at 20°C, translating to better flow rates through restrictive microfin blocks and slim radiators.
  • Anti-precipitation formula keeps the fluid optically clear and free of particulate buildup across a full maintenance cycle.
  • Anti-corrosive chemistry protects mixed-metal loops — copper, nickel, and brass — without requiring separate inhibitor additives.
  • Available in seven transparent colors with consistent dye saturation that resists fading over months of thermal cycling.
  • 1000 ml pre-mixed volume requires no dilution or preparation, simplifying loop fills and reducing user error.

👎 Cons

  • Transparent formulation shows any contamination or biological growth more readily than opaque coolants, demanding clean loop prep.
  • Cannot be meaningfully diluted with distilled water, so fine-tuning color intensity requires purchasing separate TT Premium Concentrate Dyes.
  • The 1,2-Propanediol base, while non-toxic in small amounts, requires proper disposal — it should not be poured down household drains.
  • Single 1000 ml bottle may not be enough for large enthusiast loops with triple radiators and multiple blocks, requiring a second purchase.

Frequently Asked Questions

Yes. The T1000's anti-corrosive formula is designed for mixed-metal and mixed-material loops, protecting copper, brass, nickel, and acrylic or PETG components from galvanic corrosion.
Thermaltake recommends replacing the fluid every 12 months. In practice, the anti-precipitation formula tends to hold its color and clarity well within that window, but loops with high thermal loads may benefit from a six-month inspection.
No — the T1000 is a pre-mixed, ready-to-use solution and should not be diluted. If you want a custom color, Thermaltake recommends mixing it with their TT Premium Concentrate Dyes rather than water or third-party fluids.
The T1000 is specifically formulated to minimize precipitation and particulate buildup. Its low-viscosity formula flows more effectively through fine-channel blocks than thicker coolants, reducing the risk of blockages.
For most standard loops with one or two 360mm radiators, 1000 ml is sufficient for an initial fill plus a small reserve for bleeding air. Larger loops with three or more radiators may require a second bottle.