740B/K Series Replacement
3M 740B/K series with 6.5" outer diameter — NOT compatible with standard 6" housings. Nominal removal ratings. R+F FilterElements supplies dimensionally compatible replacements.
R+F FilterElements is an independent supplier of compatible replacement elements. 3M Purification / CUNO brand names and part numbers are used for identification only — these are not original 3M Purification / CUNO products.
Technical Specifications
Outer Diameter
6.5"
Available Lengths
30" / 40"
Interface
226/O-Ring
Flow Direction
Outside → Inside
Filter Type
Pleated
OEM Numbers in this Series
| OEM | Length | Micron Rating | Media | Status | |
|---|---|---|---|---|---|
| 740B30PP001A1 | 30" | 1 µm | PP | Verified | View replacement → |
| 740B30PP001D1 | 30" | 1 µm | PP | Verified | View replacement → |
| 740B40PP002C1 | 40" | 2 µm | PP | Verified | View replacement → |
| 740B40PP005D1 | 40" | 5 µm | PP | Verified | View replacement → |
| 740B40PP010D1 | 40" | 10 µm | PP | Verified | View replacement → |
| 740B40PP025D1 | 40" | 25 µm | PP | Verified | View replacement → |
| 740B40PP040B1 | 40" | 40 µm | PP | Verified | View replacement → |
| 740B40PP070D1 | 40" | 70 µm | PP | Verified | View replacement → |
| 740K40PP005C1 | 40" | 5 µm | PP | Verified | View replacement → |
| 740K40PP010D1 | 40" | 10 µm | PP | Verified | View replacement → |
Request replacement for 740B/K Series
We verify availability and housing compatibility for your application.
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