| Application | Model | |
|---|---|---|
| General applications for purified water | For 3-pole electrode | PS-3S |
| For 3-pole electrode (2-wire) | PS-3SR | |
| For 4-pole electrode | PS-4S | |
| For 4-pole electrode (2-wire) | PS-4SR | |
| For 5-pole electrode | PS-5S | |
| For 5-pole electrode (2-wire) | PS-5SR | |
| For small spaces (3-pole) | PS-31 (SUS304, 300 mm) | |
| PS-31 (SUS304, 1,000 mm) | ||