Product Overview
The Pentair C-Series Medium Head Impeller, 7.5 HP | 070227 is a genuine OEM replacement impeller designed for select 7.5 HP Pentair C-Series commercial bronze pumps.
Engineered specifically for medium-head hydraulic applications, the 070227 converts motor power into the flow and pressure required for commercial pool, spa, aquatic-facility, and water-circulation systems.
Pentair specifies this impeller for compatible:
- CM-75 – 7.5 HP, Single Phase
- CMK-75 – 7.5 HP, Three Phase
- CMKL-75 – 7.5 HP, Three Phase
The 070227 features a heavy-duty bronze, closed-face, 8-vane construction with an approximately 5-1/8" outside diameter, making it suitable for demanding commercial pump applications.
Key Features & Benefits
- Genuine Pentair OEM Replacement
- Designed for 7.5 HP C-Series Pumps
- Medium-Head Hydraulic Configuration
- Compatible with CM-75, CMK-75 & CMKL-75
- Suitable for Single- and Three-Phase Pumps
- Heavy-Duty Bronze Construction
- Closed-Face Impeller Design
- 8-Vane Hydraulic Design
- 5-1/8" Outside Diameter
- Commercial Pool & Spa Application
- Precision Engineered for OEM Flow Performance
Specifications
| Specification | Details |
|---|---|
| Manufacturer | Pentair |
| Product Series | C-Series |
| Manufacturer Part Number | 070227 |
| Product Type | Commercial Pump Impeller |
| Hydraulic Configuration | Medium Head |
| Horsepower | 7.5 HP |
| Compatible Models | CM-75 / CMK-75 / CMKL-75 |
| Phase Compatibility | Single Phase & Three Phase |
| Material | Bronze |
| Impeller Style | Closed Face |
| Number of Vanes | 8 |
| Outside Diameter | 5-1/8" / 5.125" |
| Approx. Front-to-Back Depth | 2-3/4" excluding extension |
| Approx. Product Weight | 4.6 lbs |
| Approx. Shipping Dimensions | 5.5" × 5.5" × 3.25" |
| UPC / GTIN | 788379664244 |
| Condition | New Genuine Pentair OEM |
Compatible Pentair C-Series Pumps
CM-75
7.5 HP – Medium Head – Single Phase
CMK-75
7.5 HP – Medium Head – Three Phase
CMKL-75
7.5 HP – Medium Head – Three Phase
Pentair lists 070227 as the factory medium-head impeller for all three compatible 7.5 HP configurations.
Medium Head vs. High Head
IMPORTANT COMPATIBILITY NOTICE
Pentair uses different impellers for medium-head and high-head C-Series pumps, even when both pumps use a 7.5 HP motor.
For 7.5 HP applications:
070227
Medium Head
CM-75 / CMK-75 / CMKL-75
073829
High Head
CH-75 / CHK-75 / CHKL-75
These impellers should not be selected solely by horsepower.
The hydraulic configuration of the pump must match the correct impeller.
070227 vs. 073829
| Feature | 070227 | 073829 |
|---|---|---|
| Horsepower | 7.5 HP | 7.5 HP |
| Hydraulic Type | Medium Head | High Head |
| CM-75 | Yes | No |
| CMK-75 | Yes | No |
| CMKL-75 | Yes | No |
| CH-75 | No | Yes |
| CHK-75 | No | Yes |
| CHKL-75 | No | Yes |
If your pump model begins with CM, the 070227 is the applicable 7.5 HP medium-head impeller.
If it begins with CH, verify the high-head 073829 instead.
Heavy-Duty Bronze Construction
The Pentair 070227 uses a heavy-duty bronze construction suited for the demanding operating conditions found in commercial circulation systems.
Bronze provides:
- High mechanical strength
- Excellent durability
- Resistance to long-term wear
- Stable hydraulic performance
- Suitability for high-flow commercial pumping systems
Closed-Face 8-Vane Design
The impeller uses a closed-face design with eight vanes.
As the motor rotates the impeller, water enters near the center and is accelerated outward through the vane passages into the pump volute.
This creates the pressure and flow necessary to move water through:
- Commercial filtration systems
- Heaters
- Treatment equipment
- Main circulation plumbing
- Water features
- Aquatic-facility systems
The medium-head geometry is specifically engineered for the flow/head curve of Pentair CM-Series pumps.
Typical Applications
Pentair C-Series pumps are commonly found in:
- Hotels and resorts
- Municipal swimming pools
- Schools
- Universities
- Recreation centers
- Competition pools
- Large HOA pools
- Commercial spas
- Aquatic facilities
- High-capacity filtration systems
The 070227 restores the factory hydraulic configuration of compatible 7.5 HP medium-head C-Series pumps.
Installation Guidance
When replacing an impeller, technicians should inspect related pump components including:
- Mechanical shaft seal
- Impeller key
- Impeller lock screw
- Impeller washer
- Washer gasket
- Pump shaft
- O-rings
- Volute
- Motor bearings
Pentair identifies associated C-Series components including:
- 071037 – Impeller Lock Screw
- 071048 – Impeller Washer
- 075713Z – Impeller Washer Gasket
- 071046 – Impeller Key
- 071725S – Mechanical Seal
Replacing the mechanical shaft seal whenever the pump is disassembled is strongly recommended.
Frequently Asked Questions
What horsepower pump uses Pentair 070227?
It is designed for compatible 7.5 HP Pentair C-Series medium-head pumps.
Which models does 070227 fit?
Pentair specifies CM-75, CMK-75, and CMKL-75.
Is 070227 medium head or high head?
Medium head.
What is the high-head 7.5 HP impeller?
Pentair lists 073829 for compatible CH-75, CHK-75, and CHKL-75 high-head pumps.
Is the impeller bronze?
Yes. It is a heavy-duty bronze commercial impeller.
What is the outside diameter?
Approximately 5-1/8 inches / 5.125 inches.
How many vanes does it have?
The 070227 uses a closed-face 8-vane design.
Does it fit single-phase pumps?
Yes. Pentair lists it for the CM-75 single-phase model as well as three-phase CMK-75 and CMKL-75 pumps.
Why Buy From Pool Supply Depot?
Pool Supply Depot supplies genuine Pentair commercial pumps, C-Series impellers, motors, shaft seals, strainers, pump baskets, filters, heaters, automation systems, and OEM replacement components nationwide.
Because Pentair C-Series pumps use different impellers depending on horsepower and medium-head vs. high-head configuration, verify the complete pump model before ordering.
Order the Pentair C-Series Medium Head Impeller, 7.5 HP | 070227 from Pool Supply Depot today.