
Kason 1967-A3 Dual Temperature Display & Switch
- Monitors both freezer & cooler temps
- 9V battery backup with low-battery alert
- Plug-and-play, no calibration needed
UL Certified
NSF Approved
DOE 2017 Compliant
Walk-in cooler and freezer combo units offer dual-temperature cold storage solutions for commercial applications. ELT Custom Coolers provides complete boxes, prehung replacement doors, sliding door systems, and essential hardware — all built to industry standards for restaurants, grocery stores, food distribution, and more.











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A walk-in cooler maintains temperatures between 35–41°F for refrigerated storage of perishables, while a walk-in freezer operates at 0°F or below for frozen goods. Key differences include insulation thickness, door construction (freezers require heated frames to prevent frost), and the refrigeration system. ELT Custom Coolers offers both cooler and freezer-specific doors and hardware to match each application.
Talk to our experts for custom solutions and tailored guidance.

Swing and sliding walk-in cooler and freezer doors for commercial kitchens, ghost kitchens, and commissaries.

Large-format cooler and freezer door systems for supermarkets, convenience stores, and specialty food retailers.

Heavy-duty sliding freezer and cooler doors enabling forklift and pallet jack pass-through in cold storage warehouses.

Insulated cooler and freezer door solutions for vaccine storage, biotech labs, and temperature-sensitive product facilities.
Talk to our experts for custom solutions and tailored guidance.
Family-owned since 2008, ELT Custom Coolers brings over 18 years of specialized walk-in cooler and freezer experience to every project, ensuring expert guidance and reliable outcomes.
With 65+ cooler doors and 51+ freezer doors in stock, plus complete box units, orders ship promptly across the USA with no long lead times slowing your operation down.
Every product meets rigorous industry standards including UL certification, NSF approval, and DOE 2017 energy compliance — so your cold storage installation passes inspection confidently.
Submit your requirements and our team will respond with pricing, sizing guidance, and financing options tailored to your cold storage project.
You can also send us a quick email at sales@eltcustomcoolers.com.
You can also send us a quick email at sales@eltcustomcoolers.com.