What it does for your water
The AFWFilters BT-1840-grid Brine Tank is a brine tank whose listing says it fits Fleck control head as well as many other well known brands.
The brine tank holds the salt and makes the brine the valve draws during regeneration; its size sets how much salt it holds between refills.
From the listing: model BT-1840-grid.
The listing gives dimensions of 18 x 18 x 40 inches, a shipping weight of 20 lb and complete brine tank in the box.
Is it the right unit for your house?
Choose it when
- Repairs and upkeep
- Owners with the original part number
Pass on it when
- Softeners it doesn't name
Where it wins and where it loses
Wins
- Fits Fleck control head as well as many other
Loses
- Check the part number or size first
Limits to know about
- Figures are the maker's or seller's own; check fit and capacity against your water test and your equipment's manual.
Maker's figures
Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.
| Model number | BT-1840-grid | Retailer |
|---|---|---|
| Product weight | 20 lb | Retailer |
| Dimensions (seller) | 18 x 18 x 40 inches | Retailer |
| Fits | Fleck control head as well as many other well known brands | Retailer |
Units to weigh against it
Other brine tanks and softener parts in the catalog
- DuraWater 1840 18x40 Brine Tank
- Fleck 19228-02 Bypass Valve
- Fleck 60049 Bypass Valve
- Kenmore 7278434 Bypass Valve
Every brine tanks and softener parts on one grid · All AFWFilters units we cover
Final verdict
A sound brine tank for repairs and upkeep.
Where to buy
Our links open this exact model's product page. Prices and stock change; check what's included before you order.
Each button opens this exact model. We may earn a commission on tracked links; it never changes what we publish. Disclosure



