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1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
3 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
5 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x DI210, Heavy-duty DI system for Aquarium and Reef
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x FRQ200, Flow Restrictor 200ML / min
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
2 x 752, DC Booster Pump w/ Transformer
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
1 x HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 568,Heavy-Duty Filter Housing Wrench, HoneyWell or FilterCold
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
3 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
4 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
3 x 201, 1st stage sediment filter (replace every 6-12 months)
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x HK120-PUMP KoolerMax Aeroponics Hydroponics System Booster Pump
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x FRQ300, Flow Restrictor 300ML / min
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x KT-103, Optional Manual Membrane Flush Valve
3 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x *Discontinued* RO155
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
2 x EMT-10, Empty Filter Cartridge Casing Housing
1 x 202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
1 x .AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x 720, Feed Water Adapter with Needle Valve
1 x Special Filter Kit Koolermax dealer distribution kit
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
2 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
2 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
2 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 723, Feed Water Adapter with Ball Valve
2 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x CP-KOR24, O-RING Oring FOR KOOLERMAX MEMBRANE FILTER HOUSING
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 .SW-1C COUNTERTOP WATER FILTER SYSTEM (CLEAR HOUSING)
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x SC435, Specialty Filter Arsenic / Fluoride Removal Filter
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x 719, Drain Saddle Clamp / Valve
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
2 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x 717, Tubing 15 feet 1/4" white tube LLDPE PE for drinking water

View Cart$4,912.68
Specials Log InCreate Account Checkout  Shopping Cart120 item(s)
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
3 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
5 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x DI210, Heavy-duty DI system for Aquarium and Reef
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x FRQ200, Flow Restrictor 200ML / min
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
2 x 752, DC Booster Pump w/ Transformer
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
1 x HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 568,Heavy-Duty Filter Housing Wrench, HoneyWell or FilterCold
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
3 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
4 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
3 x 201, 1st stage sediment filter (replace every 6-12 months)
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x HK120-PUMP KoolerMax Aeroponics Hydroponics System Booster Pump
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x FRQ300, Flow Restrictor 300ML / min
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x KT-103, Optional Manual Membrane Flush Valve
3 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x *Discontinued* RO155
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
2 x EMT-10, Empty Filter Cartridge Casing Housing
1 x 202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
1 x .AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x 720, Feed Water Adapter with Needle Valve
1 x Special Filter Kit Koolermax dealer distribution kit
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
2 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
2 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
2 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 723, Feed Water Adapter with Ball Valve
2 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x CP-KOR24, O-RING Oring FOR KOOLERMAX MEMBRANE FILTER HOUSING
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 .SW-1C COUNTERTOP WATER FILTER SYSTEM (CLEAR HOUSING)
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x SC435, Specialty Filter Arsenic / Fluoride Removal Filter
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x 719, Drain Saddle Clamp / Valve
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
2 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x 717, Tubing 15 feet 1/4" white tube LLDPE PE for drinking water

View Cart$4,912.68

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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