What to match before buying
- Whirlpool’s model-revision table identifies EDR4RXD1 for WRF535SWHZ10.
- WRF535SWHZ10 uses Filter 4 (EDR4RXD1); WRF535SWHZ11 uses Filter A (EDRARXD1). The base name WRF535SWHZ alone does not choose a filter.
- The documented revision must match your label. Other revision codes need their own manufacturer check.
- The linked Amazon US item identifies everydrop by Whirlpool EDR4RXD1 and lists one water filter in the box. Check the reference and pack on the final page.
Find the model and filter codes
- Photograph the rating label inside the refrigerator.
- Confirm the full model reads WRF535SWHZ10, including the final 10.
- Compare EDR4RXD1 with the cartridge reference in the refrigerator documentation.
- Match the final Amazon reference, seller and pack before ordering.
Other models and cartridge variants
- Do not remove the final revision digits or substitute a related model code.
- This record covers US specifications. A local Amazon item does not approve another regional refrigerator model.
Manufacturer sources
Documentation reviewed by Codex (manufacturer documentation). Checked 12 Oct 2026. This is a source review, not a physical fitting test.