Castair Replacement Air Filter Element for D6 and D62 Rotary Pumps (RAFD6-62)
The Castair RAFD6-62 is the paper air filter element for D6 and D62 rotary screw pump air ends. Dimensions: ID 4-3/4", OD 6-1/8", HGT 2-7/8". At $21.18, it is the same price as the smaller RAFD3-4 — the difference is the D6 and D62 air ends cover a higher HP range. If your Castair compressor uses a D6 or D62 air end, this is the correct filter. The D6 and D62 are mid-size rotary screw air ends — do not attempt to fit the smaller RAFD3-4 or the larger RAFD10 in this housing.
Filter Specifications
- Part number: RAFD6-62
- Filter type: Paper element, dry-type
- Inside diameter (ID): 4-3/4"
- Outside diameter (OD): 6-1/8"
- Height (HGT): 2-7/8"
- Application: D6 and D62 rotary pump air ends
Air End Filter Cross-Reference
- RAFD3-4: D3, D31, D4 — 5-10 HP — ID 2-7/8", OD 4-5/8", HGT 2-7/16"
- RAFD6-62 (this part): D6, D62 — ID 4-3/4", OD 6-1/8", HGT 2-7/8"
- RAFD10: D10 — 25-40 HP — ID 6-3/8", OD 9-1/2", HGT 5"
- RAFD16: D16 — 50-60 HP — ID 6-3/8", OD 9-1/2", HGT 7-7/8"
- RAFG11: G11 — ID 2-5/8", OD 3-7/8", HGT 3-1/8"
PM Kit Options
- MKD6: Covers D6 air end — 2 air filters, 4 oil filters, 1 separator filter, 5 gal CAST-LUBE oil (saves 10%)
- MKD62: Covers D62 air end — same contents, matched to D62 oil and separator filter specs
When to Replace
- Inspect at each oil change, more frequently in high-dust environments
- Use the hour meter on your compressor to schedule filter changes
- A dirty air filter on a rotary screw unit raises operating temperature and increases oil carryover — the filter is cheap; air end rebuilds are not
What Is in the Box
- 1x Castair RAFD6-62 paper air filter element
Why Buy From Air Compressor Factory Direct?
- Castair authorized: OEM replacement element — confirmed dimensions
- Free shipping on qualifying orders
- Free tech support: 866-217-0063 — confirm D6 vs. D62 air end if you are unsure
- PM kits available: MKD6 and MKD62 for full air end maintenance coverage
Call 866-217-0063 for quick answers and help!
