Click to enlargeWellMate Fiberglass Bladder 
Water Pressure  Tanks

WellMate fiberglass bladder water pressure tanks are quicker, easier and less costly to install than steel tanks. They contain no steel, so there is no paint to scratch or touch-up and they cannot rust. All 100% lead-free component materials are NSF and/or FDA listed.





WellMate WM- Series Performance Data
Model Gallons Drawdown* Gallons Dia. Inches Height Inches Connection
To Floor
Pipe MNPT Weight Lbs.
WM-6 19.5 5.9 16 32 1-3/4" 1" 17.75
WM-9 29.5 8.9 16 44 1-3/4" 1" 24.75
WM-14WB 47.1 14.1 21 41-1/4 2-1/4" 1-1/4" 43.00
WM-25WB 86.7 26.0 24 55-1/4 2-1/4" 1-1/4" 72.75
WM-35WB 119.7 35.9 24 74-1/4 2-1/4" 1-1/4" 95.00
Maximum pressure 100 PSI for WM-6 to WM-12, 125 PSI for WM14-WB to WM35-WB
* Drawdown in gallons for 30/50 PSI pressure switch setting



WellMate Tanks Feature And Benefits
WellMate Tanks Feature And Benefits

The “WM” captive air tank series are the ideal choice for new and replacement installations for residential, light commercial and pressure boosting applications. Corrosion-proof composite construction Greater drawdown than comparably sized steel tanks. Listed under ANSI / NSF Standard 61 for water system components. Factory backed five year warranty from date of installation. Light Weight – minimizes labor cost; no need for heavy equipment



WellMate Fiberglass  20 Gallon Bladder Tank  WM6 <br>
WellMate Fiberglass 20 Gallon Bladder Tank WM6


WellMate fiberglass pre-charged 20 gallon bladder water pressure tank # WM6. Equivalent in drawdown to a 42 gallon galvanized atmospheric tank. Connection: 1" MNPT (Male pipe thread) Carton dimension: 36" H X 20" W X 20" L Weight:20 lbs.


Availability: Usually ships the next business day.

WellMate Fiberglass 20 Gallon Bladder Tank WM6
SFI-TNK-WM6List: $203.00Only $141.00
WellMate Fiberglass 30 Gallon Bladder Tank WM9 (B)<br>
WellMate Fiberglass 30 Gallon Bladder Tank WM9 (B)


WellMate fiberglass pre-charged 30 gallon bladder water pressure tank # WM9. Equivalent in drawdown to a 82 gallon galvanized atmospheric tank. Connection: 1" MNPT (Male pipe thread. Carton dimension: 48" H X 20" W X 20" L Weight: 26 lbs.


Availability: Usually ships the next business day.

WellMate Fiberglass 30 Gallon Bladder Tank WM9 (B)
SFI-TNK-WM9List: $276.00Only $223.00
WellMate Fiberglass 47 Gallon Bladder Tank WM14WB (B)<br>
WellMate Fiberglass 47 Gallon Bladder Tank WM14WB (B)


WellMate Fiberglass Pre-charged 47Gallon Bladder Tank # WM14WB. Equivalent in drawdown to a 140 gallon galvanized atmospheric tank. Connection: 1-1/4" MNPT (Male pipe thread. Carton dimensions: 41" H X 21.5" W X 21.5" L, Weight: 42 lbs.


Availability: Usually ships the next business day.

WellMate Fiberglass 47 Gallon Bladder Tank WM14WB (B)
SFI-TNK-WM14WBList: $463.00Only $375.00
WellMate Fiberglass 87 Gallon Bladder Tank WM25WB (B)<br>
WellMate Fiberglass 87 Gallon Bladder Tank WM25WB (B)


WellMate Fiberglass Pre-charged 86.7 Gallon Bladder Tank # WM25WB. Equivalent in drawdown to a 250 gallon galvanized atmospheric tank. Connection: 1-1/4" MNPT (Male pipe thread. Carton dimensions: 57" H X 28" W X 28" L Weight: 75 lbs. Will ship via truck line to a commercial address. Residential Deliveries Incur Additional Charges.


Availability: Usually ships the next business day.

WellMate Fiberglass 87 Gallon Bladder Tank WM25WB (B)
SFI-TNK-WM25WBList: $610.00Only $494.00
WellMate Fiberglass 120 Gallon Bladder Tank WM35WB (B)<BR>
WellMate Fiberglass 120 Gallon Bladder Tank WM35WB (B)


Well Mate Fiberglass Pre-charged 118.7 Gallon Bladder Tank WM35WB. Equivalent in drawdown to a 350 gallon galvanized atmospheric tank. Connection: 1-1/4" MNPT (Male pipe thread. Carton dimensions: 78" H X 30" W X 30" L. Weight: 95 lbs. Will ship via truck line to a commercial address. Residential Deliveries Incur Additional Charges.


Availability: Usually ships the next business day.

WellMate Fiberglass 120 Gallon Bladder Tank WM35WB (B)
SFI-TNK-WM35WBList: $978.00Only $792.00
WellMate Fiberglass Water Pressure Tank Mounting Bracket 11449 (A)<br>
WellMate Fiberglass Water Pressure Tank Mounting Bracket 11449 (A)


Universal pump mounting kit mounts any jet pump on top of a Wellmate pressure tank. Easy installation with only simple hand tools. Steel plate bracket, 4 rubber mounts, air stem extender, tank mounting clamps with bolts and nuts


Availability: Usually ships the next business day.

WellMate Fiberglass Water Pressure Tank Mounting Bracket 11449 (A)
SFI-ACC-11449List: $59.00Only $48.00
Water Pressure Tank Manufacturers Cross Reference Chart
Water Pressure Tank Manufacturers Cross Reference Chart