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Parker 303 liquid line filter dryer steel body 9.7 in overall length SAE flare connections

Parker

Parker 303 Liquid Line Filter Dryer 9.7 in L 8 ton R-22 5 ton R-410A

SKU CH-1ES4-6JRKH

Removes moisture and contaminants from refrigerant lines using 100 percent molecular sieve

  • Removes moisture and acid with 100 % molecular sieve
  • Handles R-22 systems up to 8 ton capacity
  • Handles R-410A systems up to 5 ton capacity
  • Fits 3/8 in SAE flare connections for easy install
  • 7 in overall length suits standard liquid line space

Parker 303 Filter Dryer for HVAC Systems

The Parker 303 liquid line filter dryer serves residential and light-commercial air-conditioning and heat-pump systems. It removes moisture, acid and solid contaminants from the refrigerant circuit to protect compressors and metering devices. Technicians install it on new equipment or during retrofit and service work.

100 Percent Molecular Sieve Media

The core uses 100 percent molecular sieve material that works with all CFC, HCFC and HFC refrigerants listed in the data. SAE flare fittings on a 3/8 inch connection allow direct assembly without brazing, reducing installation time and eliminating the need for a nitrogen purge during fitting.

Straightforward Installation

The 9.7 inch overall length and 8 inch cut-out dimension must match the available straight pipe run before cutting. Over-tightening the flare nuts can crack the forged bodies, while under-tightening leads to leaks under high-side pressure. A torque wrench and proper flare inspection prevent both issues.

How it compares

Measured against everything we stock in Heating & Cooling Controllers, at today’s prices. Recalculated every night.

Price $42.99
Typical for this category: the median of 1,762 items is $45.99.

Specifications

Product
Brand namePARKER

Questions about this item

When will the molecular sieve in this filter dryer need replacement?

Replace the filter dryer whenever the system is opened for service or after a compressor burnout; the 100 percent molecular sieve cannot be regenerated in the field.

What is the maximum cooling capacity this dryer can handle before flow becomes restricted?

Rated for 8 ton on R-22 and 5 ton on R-410A; exceeding those capacities will increase pressure drop across the 3/8 in SAE flare connections.

Does the steel shell get hot enough to require extra insulation during continuous operation?

The steel body stays near liquid-line temperature so no additional insulation is needed; the 9 11/16 in overall length fits standard piping runs without special thermal protection.

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