Gast · Filter element
AJ126D
Inline Filter (R4, R4H, R4P, SDR4, R5)
Where to get it
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As printed in the source
| AJ126D | Inline Filter (R4, R4H, R4P, SDR4, R5) (read by Claude, checked against the page)
Fits 25 models
As listed by GastWhen ordering, give the model and serial number from the nameplate: some parts changed within a model’s life.
Where it sits
In the R1102K-01
6 · Inlet filter
- Replacement ElementAG340
- Inline Filter (R1, R2)AJ126B
- Inline Filter (R3)AJ126C
- Inline Filter (R4, R4H, R4P, SDR4, R5)AJ126D
- Inline Filter (SDR5, R6, SDR6, R5P, R6PP, R6PS)AJ126F
- Inline Filter (6P, R7, R7P, R7S)AJ126G
- Inline Filter (R9, R9P, R9S)AJ126M
- Replacement ElementAJ134B
- Replacement ElementAJ134C
- Replacement ElementAJ134E
- Replacement ElementAJ135A
- Replacement Element (AJ151H)AJ135C
- Replacement Element (AJ151B, AJ151C, AJ151D)AJ135E
- Replacement Element (AJ151E)AJ135F
- Replacement Element (AJ151G)AJ135G
- Replacement ElementAJ135H
- Inline Filter R2AJ151B
- Inline Filter R3AJ151C
- Inline Filter R4AJ151D
- Inline Filter SDR4, R4P, R4H, R5AJ151E
- Inline Filter SDR5, SDR6, R6, R6P, R7MAJ151G
- Inline Filter R6PP, SDR6P, R6PS, R7, R7SAJ151H
- Inline Filter R7S, R9, R9P, R9SAJ151M
Our drawing of the machine type, with the R1102K-01's own parts; this part is highlighted. Side view along the shaft: the impeller runs in the open channel of the housing, closed by the cover.
Part number, name and fitment as published by Gast (source), retrieved 2026-10-20. Vac & Air is independent and not affiliated with the manufacturers shown; names and numbers identify the parts only.