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Product Specifications:
| Item | Fluid End Service Kit |
| Check Ball Material | Santoprene |
| Compatible With Mfr. Part No. | PF20A-AAS-SAA-G |
| Diaphragm Material | Santoprene |
| Fits Brand | Aro |
| For Use With Grainger Part No. | 4RN43 |
| Kit Components | Balls, Diaphragms, O-Rings, Seals |
| Max. Media Intake Pressure | 120 psi |
| Max. Media Temp. | 212°F |
| Media Type | Fluid |
| Min. Media Temp. | -40°F |
| No. Of Check Balls | 4 |
| No. Of Diaphragms | 2 |
| No. Of O-rings | 6 |
| No. Of Seals | 18 |
| Pump Type | Air Operated Double Diaphragm Pump |
| Series | Expert Series |
| Valve Type | Ball |
Shipping Info:
| Ship weight (kg) | 1.52 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 2.54 |
| Ship width (cm) | 2.54 |
| Country of Origin | US |
Product Variants
| Product | Model | Diaphragm Material | Max. Media Temp. | Min. Media Temp. | No. Of Seals | No. Of O-rings | Check Ball Material | Valve Type | Max. Media Intake Pressure | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
637138-63 | Viton | - | - | - | - | Acetal | Ball | - | €2,891.17 | |
![]() |
637119-4B-C | Santoprene | 212°F | 40°F | 9 | 9 | - | Ball | 120 psi | €855.12 | |
![]() |
637161-4B-C | Santoprene | 200°F | 40°F | 17 | 17 | - | Ball | 120 psi | €852.46 | |
![]() |
637429-CC | Hytrel | 180°F | 10°F | 8 | 6 | Hytrel | Ball | 120 psi | €252.44 |
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ARO 637310-AA Fluid End Service Kit
€1,203.56 /unit




