
Marvair 70389 Filter Drier
The Marvair 70389 Filter Drier is a critical liquid line filter drier designed for high-performance filtration in HVAC systems, specifically engineered for Marvair MODPAC air conditioners such as the AVP48 and AVP60 models. As a veteran technician knows, maintaining refrigerant line integrity is paramount; this OEM component utilizes a premium desiccant blend to proactively adsorb moisture, neutralize harmful acids, and trap solid contaminants down to 25 microns. By preventing ice formation at the expansion valve and stopping sludge formation, the 70389 ensures a clean, dry flow of R-410A or other compatible refrigerants to protect compressor health and minimize pressure drop. This robust HVAC replacement part is essential during any system open-up or major AC repair to avoid refrigerant circuit contamination and maintain peak cooling performance. Its compact, durable shell is built to handle the rigors of telecom cooling and commercial HVAC applications.
Key Benefits- Optimal Performance: Effectively eliminates moisture and acids within the refrigerant line to prevent internal corrosion and system failure.
- Precise Compatibility: Direct OEM replacement for Marvair MODPAC series (AVP48 and AVP60), ensuring a perfect fit and reliable HVAC maintenance.
- Debris Filtration: Mechanical filtration removes metallic grit and dirt that can damage the condenser or expansion device.
- System Protection: Reduces the risk of short cycling and thermal overload by ensuring non-restricted refrigerant flow.
When should the filter drier be replaced?
Replace the Marvair 70389 whenever the system is opened for repairs, if a sight glass indicates moisture (yellow), or if a significant temperature drop is measured across the drier, indicating a restriction.
Is this a bi-flow or one-way drier?
This is a liquid line filter drier primarily designed for one-way flow in Marvair package units. Always check the flow arrow on the shell for correct orientation during installation.
How do I install this to prevent desiccant breakdown?
Always use a wet rag during brazing to keep the drier body cool and purge with dry nitrogen to prevent oxidation. Do not heat the old drier to remove it; cut it out to avoid releasing trapped moisture back into the refrigerant circuit.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $59.38
-65%$59.38
$20.78Marvair 70389 Filter Drier
The Marvair 70389 Filter Drier is a critical liquid line filter drier designed for high-performance filtration in HVAC systems, specifically engineered for Marvair MODPAC air conditioners such as the AVP48 and AVP60 models. As a veteran technician knows, maintaining refrigerant line integrity is paramount; this OEM component utilizes a premium desiccant blend to proactively adsorb moisture, neutralize harmful acids, and trap solid contaminants down to 25 microns. By preventing ice formation at the expansion valve and stopping sludge formation, the 70389 ensures a clean, dry flow of R-410A or other compatible refrigerants to protect compressor health and minimize pressure drop. This robust HVAC replacement part is essential during any system open-up or major AC repair to avoid refrigerant circuit contamination and maintain peak cooling performance. Its compact, durable shell is built to handle the rigors of telecom cooling and commercial HVAC applications.
Key Benefits- Optimal Performance: Effectively eliminates moisture and acids within the refrigerant line to prevent internal corrosion and system failure.
- Precise Compatibility: Direct OEM replacement for Marvair MODPAC series (AVP48 and AVP60), ensuring a perfect fit and reliable HVAC maintenance.
- Debris Filtration: Mechanical filtration removes metallic grit and dirt that can damage the condenser or expansion device.
- System Protection: Reduces the risk of short cycling and thermal overload by ensuring non-restricted refrigerant flow.
When should the filter drier be replaced?
Replace the Marvair 70389 whenever the system is opened for repairs, if a sight glass indicates moisture (yellow), or if a significant temperature drop is measured across the drier, indicating a restriction.
Is this a bi-flow or one-way drier?
This is a liquid line filter drier primarily designed for one-way flow in Marvair package units. Always check the flow arrow on the shell for correct orientation during installation.
How do I install this to prevent desiccant breakdown?
Always use a wet rag during brazing to keep the drier body cool and purge with dry nitrogen to prevent oxidation. Do not heat the old drier to remove it; cut it out to avoid releasing trapped moisture back into the refrigerant circuit.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
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Shipping & Returns
Description
The Marvair 70389 Filter Drier is a critical liquid line filter drier designed for high-performance filtration in HVAC systems, specifically engineered for Marvair MODPAC air conditioners such as the AVP48 and AVP60 models. As a veteran technician knows, maintaining refrigerant line integrity is paramount; this OEM component utilizes a premium desiccant blend to proactively adsorb moisture, neutralize harmful acids, and trap solid contaminants down to 25 microns. By preventing ice formation at the expansion valve and stopping sludge formation, the 70389 ensures a clean, dry flow of R-410A or other compatible refrigerants to protect compressor health and minimize pressure drop. This robust HVAC replacement part is essential during any system open-up or major AC repair to avoid refrigerant circuit contamination and maintain peak cooling performance. Its compact, durable shell is built to handle the rigors of telecom cooling and commercial HVAC applications.
Key Benefits- Optimal Performance: Effectively eliminates moisture and acids within the refrigerant line to prevent internal corrosion and system failure.
- Precise Compatibility: Direct OEM replacement for Marvair MODPAC series (AVP48 and AVP60), ensuring a perfect fit and reliable HVAC maintenance.
- Debris Filtration: Mechanical filtration removes metallic grit and dirt that can damage the condenser or expansion device.
- System Protection: Reduces the risk of short cycling and thermal overload by ensuring non-restricted refrigerant flow.
When should the filter drier be replaced?
Replace the Marvair 70389 whenever the system is opened for repairs, if a sight glass indicates moisture (yellow), or if a significant temperature drop is measured across the drier, indicating a restriction.
Is this a bi-flow or one-way drier?
This is a liquid line filter drier primarily designed for one-way flow in Marvair package units. Always check the flow arrow on the shell for correct orientation during installation.
How do I install this to prevent desiccant breakdown?
Always use a wet rag during brazing to keep the drier body cool and purge with dry nitrogen to prevent oxidation. Do not heat the old drier to remove it; cut it out to avoid releasing trapped moisture back into the refrigerant circuit.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












