Micro Matic USA Pro-Line Back Bar Coolers - MMPP4300-35
Air-Cooled • 1,700 BTU • 1/4 HP • Model MMPP4300-35
Designed by the draft-beer experts at Micro Matic, the Pro-Line Power Pack delivers rock-solid temperature control for remote glycol draft systems up to 35 ft*. A compact footprint, digital accuracy, and a stainless-steel cabinet make it the ideal upgrade or replacement for pubs, taprooms, and restaurants that demand perfect pours—shift after shift.
Features
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Precise digital thermostat maintains glycol bath temperature for consistent beer lines.
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4.5 gal / 17 L glycol reservoir with exterior sight glass for quick level checks.
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Rugged stainless-steel cabinet and expanded urethane insulation keep cold in and condensation out.
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Vertical circulating pump (air-cooled) supplies steady flow across long python runs.
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Low-noise operation thanks to factory-installed anti-vibration pads.
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Plug-and-pour setup—standard 115 V NEMA 5-15P plug; no hard-wiring required.
Specifications
| Cooling Capacity |
1,700 BTU / hr |
| Compressor |
1/4 HP, air-cooled |
| Bath Capacity |
4.5 gal (17 L) glycol |
| Pump |
1 × Vertical circulating pump |
| Refrigerant |
R-134a (charge 0.18 kg / 6.53 oz) |
| Operating Pressure |
185 psi (low) – 244 psi (high) |
| Electrical |
115 V / 60 Hz / 1-ph • 5.0 A • NEMA 5-15P |
| Line Connections |
3/8" (9.5 mm) barb |
| Exterior Dimensions |
21.9"H × 21.2"W × 15.3"D (558 × 538 × 388 mm) |
What our Experts Think
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Entry-level glycol power pack for long-draw systems – Designed for reliable draft beer cooling in small to mid-size bars, restaurants, and tap setups.
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Stable 1,700 BTU cooling performance – Provides consistent refrigeration to maintain proper beer line temperature and pour quality.
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Compact, space-efficient design – Small footprint makes it easy to install in tight back-of-house or under-counter utility spaces.
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1/4 HP air-cooled compressor – Built for dependable operation with straightforward maintenance in standard commercial environments.
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Integrated glycol circulation system – Single pump ensures steady flow for consistent cooling across beer lines.
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4.5-gallon glycol bath with sight glass – Allows quick level monitoring for efficient upkeep and reduced downtime.
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Digital temperature control – Helps maintain precise glycol bath temperatures for consistent draft quality.
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Commercial-grade stainless steel build – Durable construction designed for long-term use in demanding beverage service operations.
Q&A
Q: What is the Micro Matic MMPP4300-35 used for?
A: It is a commercial air-cooled glycol draft beer power pack designed to maintain precise beer temperature in long-draw draft systems for bars, restaurants, and taprooms.
Q: What is its main function?
A: It chills and circulates glycol through beer lines, ensuring consistent cold temperatures from keg to tap over extended distances.
Q: What cooling capacity does it have?
A: It delivers approximately 1,700 BTU cooling capacity with a 1/4 HP air-cooled compressor, suitable for medium-length draft runs.
Q: What is the glycol capacity?
A: It includes a 4.5-gallon glycol bath with a sight glass for easy level monitoring.
Q: How many pumps does it use?
A: It comes with one vertical circulating pump for glycol movement through the system.
Q: Is it suitable for commercial bars?
A: Yes, it is built for professional long-draw beverage systems, commonly used in busy hospitality environments requiring stable draft performance.
Q: What type of refrigeration system does it use?
A: It uses an air-cooled, self-contained refrigeration system with a stainless steel insulated cabinet for efficiency and durability.
Q: What makes it important in draft systems?
A: It prevents temperature fluctuations in beer lines, reduces foam, and ensures consistent taste quality at every tap.
Q: Is it easy to install?
A: Yes, it is a plug-and-play commercial unit (115V standard plug) designed for straightforward integration into glycol-based draft systems.
Maintenance Tips
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Glycol level check (monthly): Maintain bath at full fill line using approved glycol mix (typically 2.5:1 water to glycol) to ensure stable line cooling.
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Glycol condition (every 12–18 months): Replace solution to prevent contamination, loss of thermal efficiency, and microbial growth.
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Condenser cleaning (30–90 days): Clean coils regularly to maintain 1,700 BTU cooling efficiency and prevent compressor strain.
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Airflow clearance: Keep all vents unobstructed—restricted airflow is a top cause of overheating and poor cooling performance.
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Pump inspection: Ensure vertical circulating pump runs smoothly with consistent flow; listen for vibration or cavitation issues.
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Temperature monitoring: Maintain stable glycol bath temperature (typically around ~29°F / -2°C operating range) for optimal draft performance.
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Line insulation check: Inspect trunk line insulation to prevent temperature loss and foam problems at faucets.
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Leak inspection: Regularly check fittings, hoses, and barb connections (3/8") for glycol or refrigerant leaks.
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Electrical safety check: Inspect NEMA 5-15P plug, cord, and connections for heat damage or wear.
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Cabinet cleanliness: Keep interior dry and dust-free to protect compressor and fan motor components
Damage 
Loss 
Theft 
