Log In Log In  |  Checkout   |  45 item(s)
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x KT-103, Optional Manual Membrane Flush Valve
1 x 201, 1st stage sediment filter (replace every 6-12 months)
3 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
2 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
3 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x DI210, Heavy-duty DI system for Aquarium and Reef
2 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x *Discontinued* RD102
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
2 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x *Discontinued* RD150
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 1st stage SF05 sediment filter (replace every 6-12 months)

View Cart$2,629.50
Specials Log InCreate Account Checkout  Shopping Cart45 item(s)
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x KT-103, Optional Manual Membrane Flush Valve
1 x 201, 1st stage sediment filter (replace every 6-12 months)
3 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
2 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
3 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x DI210, Heavy-duty DI system for Aquarium and Reef
2 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x *Discontinued* RD102
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
2 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x *Discontinued* RD150
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 1st stage SF05 sediment filter (replace every 6-12 months)

View Cart$2,629.50

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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