Installing a liquid line filter drier is one of the most direct ways to protect a refrigeration loop from moisture, acid, and debris. Two filter driers stand out in the same connection class: the Sanhua DTG-F08030-006 and the Ranco RFD-163. Both are black liquid line filter driers priced under $30, but they differ in connection style and condition.
Quick Verdict
If your system uses sweat (solder) connections, the Sanhua DTG-F08030-006 is the lower-listed-price option at USD $24.99. If you have a flare connection, the Ranco RFD-163 is the new-unit choice at USD $28.12, $3.13 more. The Ranco carries a California Prop 65 warning, while the Sanhua does not.
Comparison Table
| Feature | Sanhua DTG-F08030-006 | Ranco RFD-163 |
|---|---|---|
| Listed price | USD $24.99 | USD $28.12 |
| Connection | 3/8" sweat (solder) | 3/8" flare |
| Condition | New - Open box | New |
| California Prop 65 warning | No | Warning present |
| Refrigerant compatibility | HCFC, HFC, HFO | R22, R134a, R404A, R407C, R410A, R502, R507, R290 |
Where Each Product Wins
Sanhua DTG-F08030-006: This filter drier is UL Listed and is rated for a maximum working pressure of 700 psig and a maximum pressure of 833 psig. It lists compatibility with HCFC, HFC, and HFO refrigerants, including R-22 and R-410A. The listed price is lower, and it does not carry a California Prop 65 warning.
Ranco RFD-163: The Ranco is sold as a new unit, not an open box. It uses flare fittings. It has a capacity of 16 cubic inches, a tonnage range of 1-50, and a 20-micron filter rating. It also lists compatibility with a wider set of named refrigerants.
Product Notes
3/8" Sanhua DTG-F08030-006 Liquid Line Filter Drier HVAC Refrigerant UL
The Sanhua is a 3/8-inch sweat-connection liquid line filter drier from SANHUA. It is UL Listed and has a maximum working pressure of 700 psig. The unit is compatible with HCFC, HFC, and HFO refrigerants, explicitly including R-22 and R-410A. Its condition is "New - Open box," and it has no manufacturer warranty. Choose this if you are soldering into a liquid line and want the lower listed price. The trade-off is that it is not a sealed new unit, and it originates from China.
Ranco 163 Liquid Line Filter Drier 3/8 Flare Refrigeration Air Conditioning
The Ranco RFD-163 is a 3/8-inch flare connection filter drier from Ranco. It comes as a new unit, and its capacity is 16 cubic inches. It is rated for 1-50 tons and has a 20-micron filter pad. Its refrigerant compatibility list includes R22, R134a, R404A, R407C, R410A, R502, R507, and R290. Choose this if your system uses flare fittings and you prefer a new-unit condition. It carries a California Prop 65 warning covering cancer and reproductive harm, and its listed price is higher than the Sanhua's.
Final Choice by Use Case
- Go with the Sanhua if you have a solder connection and are comfortable with an open-box unit at a lower listed price.
- Go with the Ranco if you need a flare connection or want a unit that is listed as new rather than open box.
