Log In Log In  |  Checkout   |  224 item(s)
1 x CBV-38, Tank Ball Valve to 3/8 tubing
2 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x 913, 5th stage inline carbon filter (every 12 months)
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
2 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
3 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
3 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
5 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
3 x 7044-K Union Tee Connector Fitting Compression type 1/4"
4 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
2 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x 720, Feed Water Adapter with Needle Valve
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
5 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
2 x 741-38, Diverter Valve for RO DI Water Systems
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
3 x KT-103, Optional Manual Membrane Flush Valve
6 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
3 x CKV0402, Blue color Elbow Check Valve Elbow Type
3 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
7 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
2 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
2 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
2 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x 741-14, Diverter Valve for Countertop Water Units
2 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x 719, Drain Saddle Clamp / Valve
2 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
2 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
4 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x 723, Feed Water Adapter with Ball Valve
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x 6th Stage pn215 Refillable inline DI filter (color change)
2 x 214, Clear Inline Filter Cartridge Empty Case
4 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
2 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x TMR-UV-6W, Replacement UV Ballast Transformer 6 Watts for 602 UV
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
2 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
5 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
3 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x bulkic21, Koolermax Inline Carbon Filter
3 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
3 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
3 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
2 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x *Discontinued* RO155
1 x IM60, Ice Maker or RV Water Filter, Inline Typle
1 x .AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
3 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x bulk818, DI resin refill bags Di-Ionization media
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
2 x SW SHELL, Countertop SW1 Empty System Only No Filter
3 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
2 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x HK120-P-TK-220V for EURO 220V / 50Hz
2 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
2 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
2 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x 565, Digital Pressure Gauge Tester Monitor
2 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
2 x 752, DC Booster Pump w/ Transformer
2 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
3 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x 718b Blue Color Tubing 24 feet 1/4" LLDPE PE tube drinking water
1 x UU Clips Pair Membrane to Filter, 2.5" to 2"
2 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x FRQ420, Flow Restrictor 420ML / min
1 x 205, 3rd stage solid carbon block filter (replace every 12 month
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
2 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x 671C, Replacement UV Lamp Light for 609C (16 Watt)
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x *Discontinued* RO6ALK
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x 365, 4th stage TFC 50/65 US membrane filter (replace 2-3 yrs)
1 x 316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x *Discontinued* RO585
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x SC435, Specialty Filter Arsenic / Fluoride Removal Filter
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x 3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260

View Cart$8,203.88
Specials Log InCreate Account Checkout  Shopping Cart224 item(s)
1 x CBV-38, Tank Ball Valve to 3/8 tubing
2 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x 913, 5th stage inline carbon filter (every 12 months)
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
2 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
3 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
3 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
5 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
3 x 7044-K Union Tee Connector Fitting Compression type 1/4"
4 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
2 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x 720, Feed Water Adapter with Needle Valve
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
5 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
2 x 741-38, Diverter Valve for RO DI Water Systems
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
3 x KT-103, Optional Manual Membrane Flush Valve
6 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
3 x CKV0402, Blue color Elbow Check Valve Elbow Type
3 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
7 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
2 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
2 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
2 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x 741-14, Diverter Valve for Countertop Water Units
2 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x 719, Drain Saddle Clamp / Valve
2 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
2 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
4 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x 723, Feed Water Adapter with Ball Valve
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x 6th Stage pn215 Refillable inline DI filter (color change)
2 x 214, Clear Inline Filter Cartridge Empty Case
4 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
2 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x TMR-UV-6W, Replacement UV Ballast Transformer 6 Watts for 602 UV
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
2 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
5 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
3 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x bulkic21, Koolermax Inline Carbon Filter
3 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
3 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
3 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
2 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x *Discontinued* RO155
1 x IM60, Ice Maker or RV Water Filter, Inline Typle
1 x .AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
3 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x bulk818, DI resin refill bags Di-Ionization media
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
2 x SW SHELL, Countertop SW1 Empty System Only No Filter
3 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
2 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x HK120-P-TK-220V for EURO 220V / 50Hz
2 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
2 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
2 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x 565, Digital Pressure Gauge Tester Monitor
2 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
2 x 752, DC Booster Pump w/ Transformer
2 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
3 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x 718b Blue Color Tubing 24 feet 1/4" LLDPE PE tube drinking water
1 x UU Clips Pair Membrane to Filter, 2.5" to 2"
2 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x FRQ420, Flow Restrictor 420ML / min
1 x 205, 3rd stage solid carbon block filter (replace every 12 month
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
2 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x 671C, Replacement UV Lamp Light for 609C (16 Watt)
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x *Discontinued* RO6ALK
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x 365, 4th stage TFC 50/65 US membrane filter (replace 2-3 yrs)
1 x 316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x *Discontinued* RO585
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x SC435, Specialty Filter Arsenic / Fluoride Removal Filter
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x 3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260

View Cart$8,203.88

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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