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2 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
3 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
2 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
2 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x FRQ850, Flow Restrictor 850ML / min
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
2 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x *Discontinued* RD106
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
2 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
2 x 201, 1st stage sediment filter (replace every 6-12 months)
3 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
5 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
4 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x Special Filter Kit Koolermax dealer distribution kit
3 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
3 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
1 x DM-2, Inline Dual TDS monitor (meter) for RO DI System DM2
3 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x 717, Tubing 15 feet 1/4" white tube LLDPE PE for drinking water
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
2 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x .AR150PNTF, KoolerMax AR150P RO System Shell without tank faucet
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
2 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
3 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
5 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x SC435, Specialty Filter Arsenic / Fluoride Removal Filter
1 x CP-KOR45, O RING FOR KOOLERMAX BOTTOM FILTER HOUSING CASING
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x 720, Feed Water Adapter with Needle Valve
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x SC412, Water Softening Filter Calcium Magnesium Hardness Removal
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
2 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x 752, DC Booster Pump w/ Transformer
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x 205, 2nd stage carbon block filter (replace every 12 months)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
1 x UU Clips Pair from Bracket to Membrane Filter
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x *Discontinued* RD102
1 x 578, TDS Water Quality Meter tds-3
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch

View Cart$6,322.83
Specials Log InCreate Account Checkout  Shopping Cart141 item(s)
2 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
3 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
2 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
2 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x FRQ850, Flow Restrictor 850ML / min
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
2 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x *Discontinued* RD106
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
2 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
2 x 201, 1st stage sediment filter (replace every 6-12 months)
3 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
5 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
4 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x Special Filter Kit Koolermax dealer distribution kit
3 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
3 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
1 x DM-2, Inline Dual TDS monitor (meter) for RO DI System DM2
3 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x 717, Tubing 15 feet 1/4" white tube LLDPE PE for drinking water
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
2 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x .AR150PNTF, KoolerMax AR150P RO System Shell without tank faucet
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
2 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
3 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
5 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x SC435, Specialty Filter Arsenic / Fluoride Removal Filter
1 x CP-KOR45, O RING FOR KOOLERMAX BOTTOM FILTER HOUSING CASING
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x 720, Feed Water Adapter with Needle Valve
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x SC412, Water Softening Filter Calcium Magnesium Hardness Removal
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
2 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x 752, DC Booster Pump w/ Transformer
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x 205, 2nd stage carbon block filter (replace every 12 months)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
1 x UU Clips Pair from Bracket to Membrane Filter
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x *Discontinued* RD102
1 x 578, TDS Water Quality Meter tds-3
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch

View Cart$6,322.83

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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