A pool or spa replacement decision gets clearer once you separate chlorine-generation equipment from filtration equipment. Three choices here are 520556 salt-chlorinator power centers, while the Pentair Clean + Clear EC-160317 is a 150 Sq.Ft filter option. Start with the job your system needs done, then use the model language and listed price to narrow the field.
Quick take
For a replacement centered on IC20, IC40, or IC60, the two identically named 520556 Salt Chlorinator Power Center entries put those model numbers front and center. The 520556 IntelliChlor SCG Power Center is the more targeted choice when Pentair IntelliChlor pool and spa automatic-control-system wording is the key match. The Clean + Clear EC-160317 belongs in a different decision lane: it is for filtration, with a listed 150 Sq.Ft capacity and 150 GPM maximum flow rate.
Listed price comparison
| Product | Listed price | Price position |
|---|---|---|
| 520556 IntelliChlor SCG Power Center For Pentair Salt Chlorine Generator System | USD 373.00 | |
| 520556 Salt Chlorinator Power Center For Pool and Spa IC20 IC40 IC60 | USD 155.49 | |
| 520556 Salt Chlorinator Power Center For Pool and Spa IC20 IC40 IC60 | USD 155.49 | |
| Pentair Clean + Clear Single Cartridge EC-160317 150 Sq.Ft fits Pools/Spas NSF | USD 570.00 |
Decision matrix
- Replacing an IC20, IC40, or IC60 power center: Focus on the 520556 Salt Chlorinator Power Center entries, which name all three model numbers and are identified as in-ground pool power-center replacements.
- Prioritizing Pentair IntelliChlor system wording: The 520556 IntelliChlor SCG Power Center specifically cites fitment for a Pentair IntelliChlor pool and spa automatic control system.
- Addressing filtration rather than chlorine generation: The Pentair Clean + Clear EC-160317 is the relevant selection, with a cartridge filter design, 150 Sq.Ft designation, and plumbing connections described in its specifications.
- Choosing chiefly by listed cost among the power centers: The two IC20, IC40, IC60 entries sit at the lowest listed price, while the IntelliChlor-specific 520556 unit is positioned higher.
Product notes
520556 IntelliChlor SCG Power Center For Pentair Salt Chlorine Generator System
The USD 373.00 520556 IntelliChlor SCG Power Center is the focused pick when Pentair IntelliChlor pool and spa automatic-control-system fitment is central to the replacement. Its description identifies a transformer, fuse, and connection to the salt chlorine generator cell, giving this power-center choice a clearly defined operating role. The limitation is its listed price: it is higher than either 520556 entry that explicitly names IC20, IC40, and IC60. Choose the IntelliChlor version when its Pentair-specific wording matters more to the decision than selecting the lowest listed power-center cost.
520556 Salt Chlorinator Power Center For Pool and Spa IC20 IC40 IC60
At USD 155.49, the 520556 Salt Chlorinator Power Center is the lowest-listed power-center selection and directly names IC20, IC40, and IC60 in both its title and description. That makes it a practical match for a replacement decision centered on those salt-chlorinator model terms. It is also identified as a new in-ground pool power-center replacement with model and MPN 520556. Its limitation is equally specific: the stated pool type is in-ground, so its application is framed around that pool designation rather than the separate filtration role handled by the EC-160317.
520556 Salt Chlorinator Power Center For Pool and Spa IC20 IC40 IC60
This 520556 Salt Chlorinator Power Center brings the same IC20, IC40, IC60, model 520556, and in-ground pool framing to the comparison. Choose it when the relevant replacement language is an IC-series salt-chlorinator power center rather than a cartridge filter. The title also keeps the intended role clear by calling out pool and spa use. The limitation is its focused fitment framing: its recommendation rests on the named IC20, IC40, and IC60 models, whereas the other 520556 power center uses Pentair IntelliChlor automatic-control-system wording as its primary fitment cue.
Pentair Clean + Clear Single Cartridge EC-160317 150 Sq.Ft fits Pools/Spas NSF
The Pentair Clean + Clear Single Cartridge EC-160317 is the separate choice for filtration rather than salt-chlorinator power. Its title identifies 150 Sq.Ft, and its description gives a maximum flow rate of 150 GPM, along with a chemical-resistant thermoplastic tank, no-tool servicing, and a coreless cartridge. Pick it for an above-ground or in-ground pool or spa when that filter configuration is the need. The limitation is its USD 570.00 listed price, the highest in this group, and its filter role means it does not fill the role of a 520556 power-center replacement.
Final recommendation by use case
Choose a 520556 Salt Chlorinator Power Center For Pool and Spa IC20 IC40 IC60 when IC-series model wording is your decision anchor. Choose the 520556 IntelliChlor SCG Power Center For Pentair Salt Chlorine Generator System when Pentair IntelliChlor automatic-control-system fitment is the clearest match. Choose the Pentair Clean + Clear Single Cartridge EC-160317 150 Sq.Ft fits Pools/Spas NSF when the task is filtration and the 150 Sq.Ft, 150 GPM configuration fits your pool or spa setup.
