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2 x 2nd stage C10 carbon block filter (replace every 6-12 months)
3 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
5 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x 1st stage SF05 sediment filter (replace every 6-12 months)
2 x 3rd stage C10 carbon block filter (replace every 6-12 months)
3 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x SC209, Specialty Filter Nitrate Removal Filter
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
3 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
2 x SW SHELL, Countertop SW1 Empty System Only No Filter
2 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
2 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
2 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x SC412, Water Softening Filter Calcium Magnesium Hardness Removal
1 x KT-103, Optional Manual Membrane Flush Valve
1 x 913, 5th stage inline carbon filter (every 12 months)
2 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
4 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
3 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
3 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x FK-BB10K3, Big Blue Filter Pack Bundle for WH-1030 Whole House
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
4 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
2 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
2 x Special, Single Stage Housing Bracket Shell Connection Kit
4 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x 719, Drain Saddle Clamp / Valve
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
4 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
3 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
3 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
2 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x FK-BB20M3, Special Big Blue Filter Pack Bundle for WH350 WH-350
1 x 225, 5th stage Inline Alkaline filter with clear case (annual)
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System

View Cart$3,360.25
Specials Log InCreate Account Checkout  Shopping Cart131 item(s)
2 x 2nd stage C10 carbon block filter (replace every 6-12 months)
3 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
5 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x 1st stage SF05 sediment filter (replace every 6-12 months)
2 x 3rd stage C10 carbon block filter (replace every 6-12 months)
3 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x SC209, Specialty Filter Nitrate Removal Filter
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
3 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
2 x SW SHELL, Countertop SW1 Empty System Only No Filter
2 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
2 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
2 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x SC412, Water Softening Filter Calcium Magnesium Hardness Removal
1 x KT-103, Optional Manual Membrane Flush Valve
1 x 913, 5th stage inline carbon filter (every 12 months)
2 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
4 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
3 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
3 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x FK-BB10K3, Big Blue Filter Pack Bundle for WH-1030 Whole House
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
4 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
2 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
2 x Special, Single Stage Housing Bracket Shell Connection Kit
4 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x 719, Drain Saddle Clamp / Valve
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
4 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
3 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
3 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
2 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x FK-BB20M3, Special Big Blue Filter Pack Bundle for WH350 WH-350
1 x 225, 5th stage Inline Alkaline filter with clear case (annual)
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System

View Cart$3,360.25

531, PAE RO Storage Pressure Osmosis Water Tank Container 3G [531]

$45.00

531, PAE RO Storage Pressure Osmosis Water Tank Container 3G



* 531, RO Storage Pressure Tank, 3 Gallon, for replacement of Honeywell or Filtercold small blue tank

* Specification:
White color, outside volume 2 gallons, inside bladder holds about 2 gallons @ 60 psi input pressure

* Dimension: 9" diameter, 14" height, 1/4"MPT inlet connection

* Material:
Outside is steel, inside is a FDA approved food grade bladder. Stainless steel connection on top. Purified water only come in contact with bladder and the stainless steel connector on top. The tank is pre-charged to 7 psi.

* Meets NSF standard 58.

* Tank valve is included.

* Recommended changing every 5 to 7 years



If you'd like to know more.....
A pressure tank is used in RO systems to accumulate water and provide pressure at dispensing faucet. It has a water bladder inside the tank that holds the purified water, and outside the bladder is the compressed air. When you dispense water, the compressed air squeezes the bladder and forces the water out with pressure. You can connect several tanks together also to provide more water.

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