Opaque - Computer WaterCooling Show Coolant, Solid/Non-Transparent, Full Protection, Advanced User, PrimoPrep Included, Proudly Made in The USA (32oz/.9L) - Cobalt
*Price sourced from Amazon.com. Last updated 2026-07-22. Price and availability subject to change.
Bottom line: The Opaque - Computer WaterCooling Show Coolant, Solid/Non-Transparent, Full Protection, Advanced User, PrimoPrep Included, Proudly Made in The USA (32oz/.9L) - Cobalt is a niche pick — read recent reviews before buying in the cooling & fans category, priced around $30.98. Read recent reviews carefully before committing.
SpecPicks Verdict
SpecPicks classifies PrimoChill Opaque - Computer WaterCooling Show Coolant… as a niche pick — read recent reviews before buying in the cooling & fans category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. PrimoChill's positioning sits within the broader category mid-tier. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for cooling & fans of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Preservative and APE free
- ✓ Backed by PrimoChill's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- PC Opaque is a long-awaited breakthrough in showcase coolant. The solid vibrant color will set the edge on your next build and provide stunning pictures of sheer beauty to be appreciated by all. Opaque is classified as a showcase style coolant but performance is comparable to any of its transparent counterparts.
- Preservative and APE free
- Ok on all plastics, rubbers, miscellaneous gasket materials, and acrylic
- Repeatable chemistry for true colors every time
- Cleanest coolant formulation in the water cooling industry.
- Looking for a water-cooling brand you can trust? Look no further than PrimoChill. Our 20-year-old brand is right here in the USA, and we're dedicated to providing our customers with the best possible products and services. With US support and craftsmanship you will be able to see and feel the difference when you use our products.
Full Specifications
| Brand | PrimoChill |
|---|---|
| Model | PC-OP32K-CBLT |
| Weight | 32oz |
| Material | Fluid |
| Unit Count | 32.0 Ounce |
| Part Number | PC-OP32K-CBLT |
| Compatibility | PC |
| Material Type | Fluid |
| Cooling Method | Water |
| Number of Items | 1 |
| Number of Packs | 1 |
| Compatible Devices | Radiator |
Ready to buy?
PrimoChill Opaque - Computer WaterCooling Show Coolant, Solid/Non-Transparent, Full Protection, Advanced User, PrimoPrep Included, Proudly Made in The USA (32oz/.9L) - Cobalt is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-07-22. Price and availability subject to change.
Related Cooling & Fans
More guides & deep dives from the SpecPicks archive
Browse all articles & guides →- The Complete Voodoo5 5500 AGP Driver Guide (2026 Edition)
- Best Budget Gaming PC Build 2026 — ~$1,000 ($800 on Sale)
- How to Build a Windows 98 Retro PC in 2026
- Best 1440p Gaming GPUs in 2026
- Best Retro Handhelds in 2026 — From $35 to $500
- RTX 4070 Super vs RX 7800 XT — Which to Buy in 2026
- Emulation Hardware in 2026: FPGA, Software, and Cart-Reader Ecosystems
More reviews from the SpecPicks archive
Browse all reviews →- Dual Radeon AI PRO R9700 Workstation: Sub-£2,000 Local LLM Build
- Raspberry Pi 5 16GB Ships — Is the Pi 4 8GB Still Worth It?
- Why You Shouldn't Leave the Default Model on Copilot or Gemini
- Reve 2.0 Debuts at #2 for Text-to-Image: Can You Run Local Image Gen on an RTX 3060?
- DeepSWE vs SWE-Bench Pro: The Coding-Agent Benchmark Shakeup
- AMD Ryzen AI Max+ 'Gorgon Halo' 192GB: What 192GB Unified Memory Means for Local LLMs
- Gemma-4-Harmonia-31B Heretic: What the Uncensored Merge Adds Over Base Gemma 4
- Turtle Beach Recon 50 in 2026: Is the $40 Gaming Headset Still Worth It?
- Ryzen 5 5600G vs Ryzen 7 5700X for a No-GPU Home Server
- Is 8GB RAM Enough in 2026? A Real-World Performance Analysis
- RTX 3060 12GB vs Ryzen 5600G iGPU: Best 1080p Entry Path
- Build Your Own Gaming PC in 2026: The 5 Components That Actually Matter
- Build a Magic Mirror 2 Smart Home Hub (2026)
- Qwen 3.6 27B vs Mistral 3.5 Medium: Local Hardware Showdown for 24GB GPUs
- KOORUI 4K QD-Mini LED vs Samsung Odyssey 4K: Which 27-Inch Wins?
- Best SSD for a Retro PC Build: SATA, CompactFlash, or IDE Bridge?
- Best Motherboard for Ryzen 7 9800X3D in 2026
- Mistral Medium 3.5 Local Inference: VRAM, Quantization & Tokens/sec on Consumer GPUs
- Best Sim Racing Wheel and Shifter for Beginners in 2026
- Best Budget Gaming SSDs Under $100 in 2026
- Claude Code Cut 80% of Its System Prompt: What Changes for Local Agent Rigs
- GameSir G7 SE vs DualSense: Best Controller for PC
- llama.cpp vs Ollama on an RTX 3060: Which Runs GLM-5.2 Faster?
- MicroPython Now Runs on the Super Nintendo — On Real Hardware