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Parker 303S steel filter dryer 3/8 inch solder connections 9 11/16 inches long

Parker

Parker 303S Filter/Dryer 3/8 in HVAC Control

SKU CH-A3NF-2BY97

Removes moisture and contaminants from refrigerant lines using 100 percent molecular sieve for CFC, HCFC and HFC systems

  • Filters refrigerant with 100 percent molecular sieve
  • Handles 8 ton R-22 and 5 ton R-410A capacity
  • 3/8 in solder connection fits liquid line
  • 9 11/16 in overall length for standard installs
  • Alloy steel body resists corrosion and pressure

Parker 303S Filter/Dryer for HVAC Systems

The Parker 303S is a liquid line filter dryer built for HVAC and refrigeration technicians. It installs on 3/8 inch solder connections to remove moisture and contaminants from the refrigerant circuit. The all steel construction handles standard system pressures in residential and light commercial equipment.

Capacity and Refrigerant Compatibility

The unit provides 100 percent molecular sieve filtration for all CFC, HCFC and HFC refrigerants. It is rated for 8 ton capacity with R-22 and 5 ton capacity with R-410A. The 9 11/16 inch overall length and 8 inch cut out length determine the space required in the liquid line. Systems exceeding these tonnage ratings will require a larger filter dryer.

Replaces Worn Filter Dryers During Service

This component replaces an existing filter dryer during system repairs, compressor change outs or refrigerant conversions. The jump is worth it when the original dryer is saturated, when switching refrigerant types or when a burnout cleanup demands fresh molecular sieve. It is not for systems with connection sizes other than 3/8 inch or for applications needing higher flow capacity than the rated tonnage.

How it compares

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

Price $32.99
Cheaper than about 59% of the 1,762 comparable items (median $45.99).

Specifications

Product
Brand namePARKER

Questions about this item

Will the 3/8 in solder connection on the Parker 303S match my existing 3/8 in copper lines without adapters?

Yes, the 3/8 in solder connection is designed for direct installation onto standard 3/8 in copper tubing.

How can I verify the 100 percent molecular sieve is removing moisture after installation?

Check the sight glass for clear refrigerant flow and monitor system pressures; stable readings indicate the dryer is functioning.

Does the Parker 303S ship with mounting brackets or do I need to buy them separately?

The unit includes only the filter dryer body; mounting brackets and solder are not supplied and must be sourced separately.

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