Our verdict
Pick the Aquasure Harmony 72,000 if you prefer Aquasure's support and parts and its stated figures suit your water. Pick the PRO+AQUA PRO-S-80E if your household or hardness needs more capacity.
The central trade-off
Grain rating. PRO+AQUA PRO-S-80E: 80,000 grains; Aquasure Harmony 72,000: 72,000 grains.
Warranty. The PRO+AQUA PRO-S-80E lists 1 yr Standard, 3 years with registration; the other listing doesn't state one.
At an efficient salt setting. About 54,000 grains for the Aquasure Harmony 72,000 and 60,000 for the PRO+AQUA PRO-S-80E between regenerations (three quarters of each rating). Check both against your water.
Side by side
| Specification | Aquasure Harmony Series AS-HS72D 72,000-Grain Water Softener | PRO+AQUA PRO-S-80E 80,000-Grain Water Softener |
|---|---|---|
| Type | Not stated by the maker | Not stated by the maker |
| Grain rating | 72,000 grains | 80,000 grains |
| Service flow | Not stated by the maker | Not stated by the maker |
| Control valve | Not stated by the maker | Not stated by the maker |
| Resin | Not stated by the maker | Not stated by the maker |
| Dimensions | 15"L x 15"W x 60"H | 17"L x 17"W x 55"H |
| Shipping weight | Not stated by the maker | Not stated by the maker |
| Warranty | Not stated by the maker | 1 yr Standard, 3 years with registration |
Values are the makers' published specifications. "Not stated" means the maker doesn't publish it.
Which should you choose?
Choose the Aquasure Harmony Series AS-HS72D 72,000-Grain Water Softener if
- You prefer Aquasure's support and parts
- Its stated figures suit your water
Choose the PRO+AQUA PRO-S-80E 80,000-Grain Water Softener if
- Your household or hardness needs more capacity